Science topic

Paint - Science topic

Explore the latest questions and answers in Paint, and find Paint experts.
Questions related to Paint
  • asked a question related to Paint
Question
4 answers
Hi all,
I'm looking to mass mark Solenopsis xyloni ants during an experiment. For this experiment, I'm allowing the whole colony to feed on three feeders, and I want to mass mark all the ants that are visiting the feeder and returning to the nest with a unique color corresponding to each of the three feeders. I was reading about various mass marking techniques and it seems two main methods exist so far: Powder paint application (dusting it with a brush) and spray painting using small atomizers or airbrush. But I cannot find a good powder paint that is non-toxic to ants. Also, I do not want to permanently mark the ants. BioQuip had a couple of powder paints used by several researchers, but unfortunately, the company is no longer operational. Any suggestions for good powder paints or paints for atomizers (in the U.S. market)? Also, do any suggestions for specific atomizers or airbrushes that worked for you?
Let me know if you need more information to answer this question.
Thanks in advance!
Relevant answer
Answer
Thanks Gonzalo! I will go through the paper and see if I can use similar method!
  • asked a question related to Paint
Question
1 answer
Hello. I conducted batch leaching tests with samples of construction and demolition waste with adhered paints to assess the influence of the paint on the release of contaminants in the leachate. I observed that in all samples with water-based enamel paints, the pH of the leachate was significantly lower compared to the samples painted with acrylic paints. What could explain this decrease in pH?
Relevant answer
Answer
Water-Based Enamel Paints typically contain alkyd resins, which are modified with fatty acids and other organic components. During the leaching process, these components can hydrolyze and release organic acids into the leachate, thereby lowering the pH. Alkyd resins, when exposed to water, tend to break down into smaller organic acids such as acetic acid and formic acid, which are weak acids but sufficient to reduce the pH of the leachate....in other words: The fatty acids released during hydrolysis are weak acids, such as acetic acid (CH3COOH) and formic acid (HCOOH). These acids dissociate in water, releasing hydrogen ions (H+), which lower the pH of the leachate....
And the difference with Acrylic paints are... They are composed primarily of acrylic resins, which are more stable and less prone to hydrolysis compared to alkyd resins. Acrylic resins form a stable polymer network that does not readily degrade in water, leading to a less acidic leachate. The additives in acrylic paints, such as surfactants and coalescing agents, are typically neutral or slightly alkaline, which can help to maintain a higher pH.
  • asked a question related to Paint
Question
6 answers
We would like to mark nocturnal animals with something that we can see with an infrared camera, and ideally use in a way to be able to differentiate between animals. Does anyone have any experience or suggestions of something we can use?
Relevant answer
Answer
Hi Aparna Sathya Murthy , could you provide more detailed information? I am also interested in this topic. Thanks.
  • asked a question related to Paint
Question
1 answer
Greetings Everyone,
I need some suppliers which can provide Protective Microwave Transparent Paint for Antenna PCB. Kindly let me know the details of the suppliers.
Relevant answer
Answer
Here are some suppliers of protective microwave transparent paint:
  • Master Bond: Master Bond offers a wide range of microwave transparent coatings, including epoxies, silicones, and urethanes. Their coatings are used in a variety of applications, including aerospace, defense, and telecommunications.📷Opens in a new window📷www.amazon.inMaster Bond protective microwave transparent paint
  • Chemtronics: Chemtronics offers a variety of microwave transparent coatings, including acrylics, epoxies, and silicones. Their coatings are used in a variety of applications, including electronics, medical devices, and automotive.📷Opens in a new window📷www.chemtronicseu.comChemtronics protective microwave transparent paint
  • 3M: 3M offers a variety of microwave transparent coatings, including acrylics, epoxies, and silicones. Their coatings are used in a variety of applications, including electronics, transportation, and medical devices.📷Opens in a new window📷www.amazon.com3M protective microwave transparent paint
  • Dymax: Dymax offers a variety of microwave transparent adhesives and coatings, including acrylics, epoxies, and silicones. Their products are used in a variety of applications, including electronics, medical devices, and industrial.📷Opens in a new window📷www.conro.comDymax protective microwave transparent paint
  • Permabond: Permabond offers a variety of microwave transparent adhesives and coatings, including acrylics, epoxies, and silicones. Their products are used in a variety of applications, including electronics, aerospace, and automotive.📷Opens in a new window📷www.euromarc.co.nzPermabond protective microwave transparent paint
When choosing a protective microwave transparent paint, it is important to consider the following factors:
  • Application: What will the paint be used for? Consider the environment in which the paint will be used, as well as the type of substrate it will be applied to.
  • Performance requirements: What are the required performance characteristics of the paint, such as microwave transmittance, durability, and temperature resistance?
  • Cost: Protective microwave transparent paints can vary in price. Consider your budget when choosing a paint.
It is also important to note that some protective microwave transparent paints may require special application procedures. Be sure to follow the manufacturer's instructions carefully.
tuneshare
more_vert
  • asked a question related to Paint
Question
3 answers
I've requested the full text for this journal but haven't anything back. So I was just wondering if anyone know where I can download it from as it will really useful for my dissertation
Relevant answer
Answer
I'm looking for the exact same thing. Did you manage to gain access?
  • asked a question related to Paint
Question
3 answers
There are many white coatings or solar coatings available commercially, but is there a radiative cooling paint available commercially?
Relevant answer
Answer
Although there are many well performing paint and coatings developed at lab scale, non of them are commercialized yet. Main reasons are the high cost, inability to apply for a larger area, etc. You could find further information in this recent article.
  • asked a question related to Paint
Question
3 answers
does anyone know why there is an air gap at the end of the pipette tip every now and then after aspirating? it seems to occur more often when pipetting larger volumes on a P1000 but can also occur when say using a multichannel pipette on lower volumetric pipettes. pardon the poor paint image to depict what im trying to get across
is this a operator error or is it natural to occur? if an operator error, are there any tips to avoid this?
Relevant answer
Answer
Usually is caused by capillary action. Some brands of pipette tips are more prone to it than others. Other causes can be the viscosity of the fluid being pipetted is preventing the tip from fully filling in the time you have it submerged so the remainder is filling with air when you remove the tip. If this is a consistent problem, do not use them for qPCR.
  • asked a question related to Paint
Question
3 answers
I am working with acrylic latex using styrene and butyl acrylate with 50% solid content. How can I reduce the viscosity of the latex?
The other question in this subject: how can I adjust the pH to 9, because I used 40% NaOH for 200g latex (about 10g) , NH3, NH3/NH4Cl buffer but I didn't achieve the desired adjustment.
  • asked a question related to Paint
Question
2 answers
I was reading a few articals for my research on TiO2 used in paint formulation, and I found only few extenders like Calcined kaolin, Hollow spheres, Barium sulphate that could reduce by little the amount of TiO2.
Isn't there any other substitute for TiO2 pigment that have a less environmental impact?
Relevant answer
Answer
There are a variety of eco paints that use substitutes including zinc white (zinc oxide), calcium carbonate (chalk or whiting) , talc (magnesium silicate) or clay (aluminium silicate). These are all less opaque than TiO2. Info from “A Handbook for Eco Paints and Finishes’, Lynn Edwards, eco-logic books 2008.
  • asked a question related to Paint
Question
1 answer
Impact of marine resources
Relevant answer
Answer
Well, Md Imran Shah, an example of the negative impact of antifouling paints on marine ecosystems is the case of imposex in marine gastropods.
Tributyltin (TBT) is an organometalic compound added to vessel paints as an antifouling. TBT is able to induce the development of male sexual characteristics in females of marine gastropods, including penis development. This is a big problem because the development of a penis in female gastropods over time obstructs the access to the genital gland by male gametes, thus preventing reproduction.
An example of a research article which addresses this problem is this:
Ruiz, J.M; Carro; B.; Albaina, N.; Couceiro, L.; Míguez, A.; Quintela, M.; Barreiro, R. (2017). Bi-species imposex monitoring in Galicia (NW Spain) shows contrasting achievement of the OSPAR Ecological Quality Objective for TBT. Marine Pollution Bulletin 114 (2):715-723.
  • asked a question related to Paint
Question
2 answers
Hi !
I come to ask for help. Indeed I try to isolate an object in an image with XnView and paint but the object to isolate appears blurry.
So please help me either with other tools or methods.
THANK YOU
Relevant answer
Use K-Means algorithms, and then Morphological algorithms
  • asked a question related to Paint
Question
3 answers
I need to make low cost reflectance calibration samples. I plan to apply special paints on a plywood board.
For high reflectance, BaSO4 paint works well, but I can't find low (10%) reflectance composition.
Does anyone know a supplier or a recipe to buy/make such a paint?
Thanks!
Relevant answer
Answer
Hi Daniil Marinov
You may make an inquiry at Alfa Chemistry, they offer kinds of good-quality materials.
  • asked a question related to Paint
Question
2 answers
Dear Colleagues,
Please give me a hint how to expand the process window of laser paint etching on painted plastic parts?
The task is to reduce the sensitivity of the laser process to variations in paint thickness.
Which of the laser etching parameters can be changed to expand the process window between burning the material and not etching the paint?
I have: laser beam speed, frequency and line spacing.
Thank You.
Bartosz
Relevant answer
Answer
If it is a pulsed laser, one can try various PRFs, Pulse Repetition Frequency.
  • asked a question related to Paint
Question
3 answers
Can anyone suggest the literature sources/LCA data on Paint (water based and solvent based) manufacturing and end of life treatments such as reusing, recycling (remanufacturing) and incineration?
Relevant answer
Answer
For walls - I assume it´s water-based polyvinylacetate or derivatives - I have no information.
  • asked a question related to Paint
Question
5 answers
I try to add white background on the big image by using Paint 3D. Originally, the size of big image is 9825 x 9908 pixels. But after adding the background, the size is automatically change to 6198 x 5885. May I ask why auto-resize will occur and how is the final size be calculated in the Paint 3D canvas ?
Relevant answer
Answer
Actually, the question is 'when processing the background removal with Paint 3D. If the image size is too great, it will be downside automatically.
  • asked a question related to Paint
Question
1 answer
I have a very thin sample of BNNT that is heated up and I need to measure it's temperature using a long wavelength IR camera. This BNNT is of unknown emissivity and I currently unable to measure it using a spectrometer. My thinking is that I can attach or apply a layer of a material of known optical properties to the bottom of the paper so I can measure it's temperature instead. Since I will be applying a think layer, I am assuming the temperature would be the same. I am expecting the temperature of the sample to be between 300 and 500 degrees Celsius.
Now my question is what can I use? I found one Thermographic paint that I can use but the distributor is in Europe and I am in Canada, so it would take some time to obtain the paint. I am looking for other alternatives before making a decision.
Relevant answer
Answer
Hello, the absolute temperature measurement of your material with a thermal camera will be quite tricky. It's designed for non transparent object with emissivity spectra similar to "perfect grey body". You can use a really thin paint layer of known emissivity just like you have mentioned. Just be carefull. This paint will change the mechanical properties of your material and can break when temperature changes. At 500degrees you can expected also some chemical reactions between paint and material.
You can also carry on with another aproach:
Heat your material to known temperature and measure it with IR camera as fast as you can. You can create a calibration table for different temperature and then it will be easy to calculate aprroximate temp. of your material.
You can also use really small SMD thermistor connected to your material with silverpaste and some glue and then use IR camera just for relative temperature measurement.
  • asked a question related to Paint
Question
3 answers
I want to understand the stability of pigment particles over time. I have an old sample (unchanged for 2 years), a new one (manufacturing 2 months) and mixed (old sample was mixed). I want to understand how much I need to change (mix) the paint so that it is like new again. Is it possible to use a method to measure ZP (DLS) to understand how paint can degrade? How can particles agglomerate?
Relevant answer
Answer
If the particles have aggregated, agglomerated and settled then the right light scattering technique for particle size measurement is laser diffraction and not DLS.
  • asked a question related to Paint
Question
6 answers
Hello Colleagues
For our project, we are looking for a layer that blocks visible light and allows infrared radiation to pass through.
We would like to use such a material in the form of a film (sticker) or paint.
Do you know of such material on the market?
Thank You for help.
BR
Bartosz
Finishing and Appearance Engineer.
Relevant answer
Answer
Silicon is metallic reflecting for visible light and transparent for wavelengths above ~1100nm.
  • asked a question related to Paint
Question
5 answers
Dear Colleague,
I am searching for an electrically conductive adhesive for making good contact with ceramic pallet and copper wire.
Silver paint or silver paste doesn't have sufficient adhesive nature .
Can anyone please suggest such an adhesive which serves in cryogenic temperature?
Thanks and Regards
N Das
Relevant answer
Answer
Dear James Garry,
Silver loaded conductive paint doesn't have enough strength. That's why I search for some other conductive adhesive for better strength.
Basically, I need some conductive adhesive which can bear the stress of silver wires which are to be connected with a ceramic pallet.
Please recommend.
Thanks and Regards
N Das
  • asked a question related to Paint
Question
9 answers
I am looking for suggestions for a chemical resistant paint/coating which I can use to cover the sides of the steel plate except for one face for corrosion testing. If anyone has any suggestions please let me know. Thank you
  • asked a question related to Paint
Question
4 answers
I would create my plates (a group of histologic figures) in MS paint, then save in irfanview, where I resize and adjust to desired dpi. I couldn't group figures, label, adjust contrast, etc in irfanview. I thought there should be a software that does it all.
Relevant answer
Answer
Hi Davinson,
You might want to have a look at GIMP: https://www.gimp.org/
You can think of this as a free and open source Photoshop that runs on Windows, Mac and Linux. The website has a bunch of tutorials for image manipulation, setting up layers, adjusting DPI etc
  • asked a question related to Paint
Question
1 answer
Dear Colleagues,
I want to use RS Pro Silver Paint ( 186-3600) on a pellet for making electrical contact.
Does this paint work at cryogenic temperature?
I can't find the service temperature .
Please help with discussion.
Thanks and Regards
N Das
Relevant answer
Answer
Dear sir,
It is good and I am using it for 1.8 K to 350 K.
  • asked a question related to Paint
Question
2 answers
We are experiencing some corrosion/peeling of the white paint inside the Akta F9-C fraction collector. We suspect that this is due to overflow while washing the fraction arm under high flow rate after runs with high salt (6M urea). We have since fixed the overflow issue, but are curious if anyone else has experienced this paint corrosion/peeling before and if so, did it cause any further problems? For example, did the metal under the paint begin to corrode? Was there anything you did to re-seal the corroded area?
Thank you in advance for any comments/advice!
Best,
Kira
Relevant answer
Answer
In my opinionYou have to clean up any spills or leaks quickly to prevent long term damage & fully dry any areas of damage to remove any remaining liquid.
  • asked a question related to Paint
Question
1 answer
Most preferable method should work with thermoplastic paint, however other suggestions would be welcome along with the relevant Information.
Relevant answer
Answer
Hot melt road marking paint is solid powder at room temperature. In construction, the thermoplastic paint was put into a melting kettle called thermoplastic pre-heater, to mix and melt into the molten flow state.
Then the melt paint was transferred into the paint tank of hand-push marking car, and then the molten coating will be introduced into the marking bucket and the material insulated remains molten. When the marking work starts, the marking bucket should be on the road surface.
Because there is a certain gap between marking shoe and the ground, when the marking car was pulled forward, by automatically flowing, a neat marking lines was scraped out, glass beads sow can automatically evenly spreading a layer of reflective glass beads on the coating lines. The gap of marking shoe controlled the thickness of the coating.
Every road marking machine has a hydraulic guide rod to ensure the painting line accurate and straight. Besides, before painting, the road surface was premarked a line by an auxiliary equipment pre-marker.
  • asked a question related to Paint
Question
8 answers
looking for a chemical paint used for wood and has anti-fire properties
Relevant answer
Answer
Dear Mohsin O. Mohammed, please check the following links. My Regards
DOI: 10.5772/67675
  • asked a question related to Paint
Question
4 answers
We want to mark the predator Arma custos (Hemiptera: Pentatomidae: Asopinae) to study how individuals move within in field。 We have evidence that they move slow at nymphal, could fly at adult . We tried Fluorescent paint but Ultraviolet light we used at nitht is weak , which makes it harder for us to track. Does anyone have any suggestions about a suitable method?
Relevant answer
Answer
Hello Yinlin; Like Declan I and my students have used dots of acetate paint applied to the prothorax of various beetles. It dries quickly and doesn't harm the beetles. Applied with the head of an insect pin. Best regards, Jim Des Lauriers
  • asked a question related to Paint
Question
1 answer
What are the benefits and the disadvantages of those?
what industries use those item beside Textile and paints?
does it have any other uses beside as dispersing agent?
which one gives more water resistance in paint and why?
Relevant answer
Answer
A lot of generic questions including judgements. From my side I can contribute as follows. Neutralizing PAA with NH4+ seems to me akward. I could imagine that this leads to protonated PAA (without any charge anymore) and NH3. From physical-chemical point of few, the behavior of NaPAA seems to be a bit more predictable.
  • asked a question related to Paint
Question
4 answers
Solar Paint technology:- Solar paint, also known as photovoltaic paint, is exactly what it sounds like! It’s a paint that you can apply to any surface that will capture energy from the sun and transform it into electricity. The paint would essentially be your average paint, but with billions of pieces of light-sensitive material suspended in it, material that would transform the typical paint into superpowered energy-capturing paint.
Present I am working on different technologies included in itself and how to develop the infancy to developed stages and what are the implementations and challenges are facing in the future.
Relevant answer
Answer
Dear Rajasekhar Reddy,
In my opinion, the photovoltaic painting technology, Solar Paint Technology based on the so-called Solar paint, also known as photovoltaic paint, is a revolutionary innovative solution. If it could be implemented on a large scale and popularized, then the buildings would be able to absorb sunlight through the side walls of buildings and convert solar energy into electricity. I wish you success in developing and implementing this technology. It can be an important element of the pro-environmental transformation of the energy sector and the development of green, sustainable agglomerations.
Best wishes,
Dariusz Prokopowicz
  • asked a question related to Paint
Question
4 answers
If a iron metal rod is kept outside in ambient air (temp condition extreme low and high -10 to 50 degree) and another iron with some paint (normal oil paints)/ zinc coat kept . What will be the effect of coating on heat gain of iron.? Will it attain more temp than which no coated iron rod.?
Also what will be effect on the thermal expansion of metal due to it.?
Relevant answer
Answer
Dear Sandeep Samane,
As is known, the materials have thermal expansion upon heating and shrinkage upon extrusion. This expansion and contraction is different for each metal, alloy or composite. The application of a coating leads to a change in heat transfer. Depending on the thermal conductivity of the coating can improve or worsen the desired positive result.
As an example, for metals with poor thermal conductivity, a coating with good thermal conductivity can be applied in order to improve heat dissipation during cooling. For metals with good thermal conductivity, a coating with poor thermal conductivity can be applied to reduce heat losses from heating the parent metal.
There are cases in which the coating on metal has only protective properties against corrosion without greatly deteriorating the thermal conductivity of the base metal.
Wishing you success in your research
  • asked a question related to Paint
Question
1 answer
I came across a very nice diagram in the following article, Fig. 2A
and since I've been wondering, how does one produce such a diagra in a (semi) automated way? Of course one could use Microsoft Paint with a lot of patience - but if any of you know an elegant solution, I'm very keen to know.
Relevant answer
Answer
Although may not be you are looking for, I found those who may be helpful:
There are many so that you could look around using your internet search. You could directly ask the authors.
  • asked a question related to Paint
Question
1 answer
Hello and Good Day to everyone,
I am currently planning doing some research of adhesion effect for the hot dip galvanizing on the painted steel. Most of the galvanizer having big problems when doing cleaning prior galvanizing process. Thinking some of primer paint that being used in the industrial to be tested for the hot dip galvanized process like zinc rich primer.
Thank you
Relevant answer
Answer
Your project is hopeless, without a thorough cleaning of the surface, galvanizing is not possible. Practically all coating processes are very sensitive to contamination, but the processes where a metallurgical bond is created between the layer and the substrate do not tolerate any contamination at all. The residues of organic substances (oil, grease, paint residues and others), which form a charred separating layer on the substrate surface, are particularly bad. Precisely for this reason, the surface preparation before galvanizing (sandblasting, degreasing, etching and other processes) is crucial for the result of the coating.
  • asked a question related to Paint
Question
3 answers
Hello,
I am trying to make artificial muscles out of the nylon fishing line and to actuate the muscles I plan on using joule heating, but I have read some research papers which say that we can apply conductive silver paint on the nylon and then pass the electricity through it, but wouldn't it take a lot of energy to to heat the silver since it has a very low resistance, I also want to know if its feasible to use Nichrome wires instead of silver paint for joule heating.
Thanks
Relevant answer
Answer
Are you interested in the efficiency of such an arrangement? You have a heat engine with fairly close input and output temperatures, giving Carnot efficiencies of only a few percent.
  • asked a question related to Paint
Question
4 answers
Dear all,
Am wondering what's is the best digestion method of heavy metals in paint sample for AAS analysis
Relevant answer
Answer
Dear Dr Muhaliyu Abdulmojeed
If the ICP is not available for you, yes you can follow wet digestion method ( AOAC) and we have done that study without any problem!
  • asked a question related to Paint
Question
4 answers
Below I given a Picture of ED Coated tube.
Relevant answer
Answer
Dear Dr. Atik Islam ,
as said before in another your question, it is not easy to answer your question (a bit generic) as there are many specific types of ASTM Standards to test / characterize the conformity of the different characteristics of an ED Costing on a pipe, which I suggest you take a look at, for example :
-Test Methods for Coating Adhesion by DeFelsko
-International Standard by elcometer
-QUALIFICATION TESTS FOR PAINT SYSTEMS by Petrobras
-ASTM Designation: B487−85 (Reapproved 2013)
Standard Test Method forMeasurement of Metal and Oxide Coating Thickness byMicroscopical Examination of Cross Section
and so on...
As ASTM standard, you can try to have a look at the following web. site by Paint Square:
-Paint and Coatings Industry Standards
D870 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion
My best regards, Pierluigi Traverso.
  • asked a question related to Paint
Question
21 answers
Hello, fellow education research and action leaders,
As part of an education-focused project, Green Teach for Opportunity, a small team and I are researching the opportunities and pain points educators perceive related to teaching sustainability skills* across and among disciplines. I read and appreciate your work on this topic, following many of you, and also offer several books, articles, and informal research papers here on Research Gate as well.
The question above is an attempt to better understand the level of interest, indifference, and relevance faculty and teachers (secondary and post-secondary) are feeling about sustainability skills education in general, and also related to career preparation specifically. If you would kindly answer this question, it would be helpful to know the relevance, if any, you see on a scale of 1-10 (1-least important/relevant and 10 most important/relevant).
"Relevant for what," you may ask? The intent here is primarily to gauge the relevance or importance you see relative to the learning objectives for your particular course or curriculum (specifically, for classes you teach, or courses of study you directly support, i.e., in a curriculum development or similar role.)
It would also be helpful to know your title, discipline, or major you instruct or support, and also your state (if in the US) or country. If you wish to provide your name and email to stay posted on findings and updates from the Green Tech for Opportunity project, that is of course not necessary, but would be appreciated.
*The term "Sustainability" in this question is meant to encompass diverse concepts and approaches related to sustainable well-being for all, including environmental, regenerative, sustainable development, conservation, and green education. Although these terms represent some variation in vision and approach, there is usually a good deal of overlap in intent. Your opinions on this matter are also welcome.
My contact information: L. Julian Keniry - ljkeniry@esdigroup.org - 1-202-999-9244
Relevant answer
Answer
I think is very important to prepare students at universities and also to accomplish visits from time to time to High Schools with university staff concerning this matter.
Skills (technical & soft) and competencies are now crucial in career developments for youngsters, Prof. Lisa Julian Keniry
Best Regards.
  • asked a question related to Paint
Question
7 answers
The four samples shown are paint samples which were dried and ashed using a drying oven, followed by a muffle furnace. A small amount of the ash was used on gold stubs for SEM imaging. However, I am struggling to interpret the results as all the samples look very similar. Much of the literature regarding SEM and paint samples involves the detection of different layers, however the sample was ashed and therefore this is not relevant. How would these SEM images allow me to distinguish between the paint samples?
Relevant answer
Answer
Once dried, paint samples can be analyzed by the usual material science techniques :
  • surface SEM/EDX will give you information/clues on the texture (are there mineral fillers, matting agents...), on the pigments (Iron might mean iron oxides, Copper might mean blue copper phtalocyanine, etc ,etc), sometimes even maybe on the binder..
  • cross-section SEM/EDX will give you info on the structure : one or more layer, which layer contains which mineral, thicknesses of the layers, etc, etc
  • furnace ashing (400° then 900°C for instance) will give you the ash content, the loss on ignition between 400 and 900°C and will produce ashes that can again be analyzed using SEM/EDX for better identification of minerals
  • TGA/DSC will give you ash content again, moisture content, and tell you which potential binder is present (or not, if complex mixtures)
  • FTIR, surface and cross-section may help you identifiy the binders and even some minerals (silica for instance) : chemical imaging FTIR on cross-sections can even help you identify different layers that might not have been distinguished in the SEM
  • if you've got a Py-GC-MS, go for it but be prepared to spend some time sorting out the peak forest.
If wet, back to analytical chemistry techniques :
  • dry and extract using various solvents ; inject into a GC-MS and you might get information on the dispersing systems
  • directly extract using various solvents and run FTIR on the extracts (evaporate, deposit a few drops on a NaCl or other FTIR window), you might get information about hte latex being used, the other chemical additives. If you're adventurous, dilute and inject in a GC-MS, see what comes out (and change your septum/liner).
  • cannot comment on using HPLC, never had the chande to try it
And really lots of other techniques might help characterizing a paint dispersion or solution : sedimentation, thin layer chromatography, etc ,etc
  • asked a question related to Paint
Question
4 answers
We are using an aluminum/steel plate as a protection shield facing concentrated solar irradiation of 1000 Suns. The shield is watercooled to keep the temperature <400C, however We want to minimize the incomming radiation using a highly relective (> 90%) paint (and in future maybe a coating).
Relevant answer
I hope you can obtain a reasonable protection by practicing heat resistance coating based on titanium oxide matrix (originated from butyl titanate) and aluminum pigment. These coatings characterized as high temperature coatings up to 600oC with high solar reflectance and high thermal emittance as for titanium oxide, they could be more or less 90% and 95% respectively. I understand such coating formulation is conventional but I understand also it is highly effective in fulfilling your requirements. For that, I recommend to look more details at pages 419-425,563-564 in the book titled "Protective Coatings for Metals" on the following link.
Best regards
  • asked a question related to Paint
Question
12 answers
Required a spray or paint which can resist the heat flow between two steel block in physical contact. Working temperature is 250 degree celsius.
Relevant answer
Answer
VHT , They have different coats (ceramic)
  • asked a question related to Paint
Question
4 answers
at least some techniques on how some extracts can be obtained from plants.
Relevant answer
Answer
An Organic Compound extract from different parts of the plant(Like seed, bark, leaf, root) by using different solvent extraction or Maceration; Soxhlet; Ultrasonic waterbath.
  • asked a question related to Paint
Question
3 answers
Researchers working on photoelectrochemical hydrogen production, use EIS results to describe mechanism of charge transport inside and at the surface of electrode. Flat band calculations are also done by EIS. Can we use results of IS because in IS pellet is usually coated with silver paint and that silver paint act as electrode. So could we use the mechanism of charge transfer estimated from circuit fitting of IS results to explain the PEC usefulness of a material?
Relevant answer
Answer
In EIS the working electrode potential is controlled (in a cell with 3 electrodes). I don't see the possibility of doing a similar thing in IS (in a cell with 2 electrodes).
  • asked a question related to Paint
Question
10 answers
As we know one of the main ingredients in paint industry as a pigment is Titanium dioxide. However it costs too much. Considering these two facts in our mind, I want to know, how it is possible to diminish the usage of TiO2 in this industry?
Relevant answer
Answer
If you can find a way to improve the role of TiO2 in paint component, such as ratio of TiO2/solvent, then amount of TiO2 may be decreased
Regards,
K
  • asked a question related to Paint
Question
4 answers
I'm submitting manuscript to a journal that requires 1200 dpi in my images. I have changed the dpi from 96 but when I upload the image with 1200 dpi, the image looks super blurry when I review my manuscript. If I open the image in word/paint/other the resolution is great but in the submission it looks blurry. It is the right dpi but it is impossible to see the figures. What should I do? I don't want this to be a possible reason for the journal to not accept my manuscript.
  • asked a question related to Paint
Question
5 answers
I am looking at doing an honours research project on Dolomedes tenebrosus. It would involve marking them with paint in the field, but there are no resources that I can find explaining the proper handling and no one in my area has done research on them before. Any help would be appreciated, thank you!
Relevant answer
Answer
Alyssa, Do you need to identify each as a separate individual or just as a member of the group? Do you collect/observe them during the day or at night? Fluorescent powders work to mark many individuals as a group, but I think I have five different colors so could mark that many individual spiders to be recognized. When more individuals need to be identified, most people use paint dots in a pattern. Have you found references to these studies? With both of these methods, the markings can 'fade' but I have also considered trying to mark with internal fluorescent vital stains, but do not know if it would be possible with a spider as large as this Dolomedes.
  • asked a question related to Paint
Question
2 answers
The aim is to draw an energy flow in a certain industrial process as a "big arrow", whee "small arrows" will show the losses taken by different issues. These pictures may be widely seen in different papers and books, but what is the best way to draw them, other that "paint"?
Relevant answer
Answer
Hi, The chart you are talking about is called the Sankey chart. I recommend creating these charts using the MatPlotLib library (python).
  • asked a question related to Paint
Question
7 answers
Is there any report on surface oxidation of silver nanoparticles that are embedded in paints and coatings used against microbial fouling on buildings, monuments, etc? Also, what is the likelihood of surface oxidation in such a scenario where there is an existing chemical bond/interaction between paint matrices and nanoparticles? How far does the phenomenon of oxidation affect the performance of these coatings, if at all? Are there any existing strategies and technologies that are applied to overcome such a challenge?
Relevant answer
Answer
Of course, silver particles can sulfidize in air (4Ag + 2H2S + O2 = 2Ag2S +2H2O), but the antimicrobial effect of the sulfided silver surface is retained.
  • asked a question related to Paint
Question
7 answers
The adobe illustrator has a steep learning curve, the MS paint is not that robust, pictures pixelate when resized and not enough features. Please feel free to suggest.
Relevant answer
Answer
Yes Adobe Illustrator has many powerful functions, but it is not perfect and universal for creating various types of graphics for the purpose of publishing them in scientific publications. I use Ms Excel to draw charts. However, to draw graphics, diagrams, etc. I use several different graphics applications, e.g. Gimp, Photoshop, Inkscape, Blender, Render, Pixia, ACDSee, Twisted Brush, Picasa, PhotoFiltre etc. PowerPoint and some other Ms Office applications, OpenOffice etc. are commonly used to draw simple diagrams, diagrams, etc. in presentations or other documents in which scientific texts are also edited. Adobe Photoshop and Adobe Illustrator offer a rich set of graphic and illustrative tools, but their use is associated with relatively high costs. For drawing various types of graphic objects, you can use Open Source graphic applications (free), such as Gimp, Inkscape, Blender, ACDSee, etc. For digital photo processing, you can use Open Source graphic applications (free), such as Rendera, Pixia , Twisted Brush, Picasa, PhotoFiltre etc. In my opinion, unfortunately, there is no perfect, fully universal graphics application that would allow you to draw and process various types of drawings, graphics, photos, etc. Each application has its advantages and disadvantages. So the choice of a specific graphics application is determined by the type of graphics and / or drawings that we draw most often.
Best regards,
Dariusz Prokopowicz
  • asked a question related to Paint
Question
9 answers
I am looking for paint or in an extreme case a coating material on inAtmosphere flying object to reduce the heat dissipation caused by aerodynamic heating for a relatively longer period, considering the speed range of upper hypersonic range.
  • asked a question related to Paint
Question
5 answers
I have fabricated graphene Hall device with contact pads of Cr/Au of size 200x200 um^2 with separation of ~300 um between two pads .I am having some issues with wire bonding. So, I want to know which is the best conducting adhesive for making wire contact between contact pads of the device and pads of the chip carrier, compatible in a wide range of temperature (~ 4K-300K) as an alternative to the wire bonding?
Thanks in advance.
Relevant answer
Dear Hurmal,
May answer is late but it may benefit who have the same question. We used silver epoxy to bond gold wires on aluminum with post bake for about one hour at 120 degree centigrade. It could withstand many cooling cycles in liquid N2 cryostat. I my self was astonished from the strength of such contacts.
I do not know whether they can withstand down to 4 K or not.
I think you can try it yourself. You do not loose much but you will get decessive answer to your question.
To see our specimens and the temperature range please refer to the paper in the link:
Best wishes
  • asked a question related to Paint
Question
5 answers
You have a solution for removing paints from containers such as disposable polypropylene and polystyrene cups for recyclable?
Relevant answer
Answer
Dear Zosha,
Good question, I would like to do only some comments by considering the practical approach and also some economic reasons.
So, the main goal is to recycle the “disposable tableware” that contain some traces (to read, small amount) of paints. Based on my practical experience with these polymers (PP, PS) I will say that recycling can be feasible even without the previous removing of paints. Maybe you will have at laboratory scale the possibility to compare the “washed” to “unwashed” products point of view molecular, thermal, mechanical, other- characteristics. I suspect some minor difference concerning the whiteness of products, but this it is usually for recycled items.
If you are looking for simplicity and a more economical process, I will say that the “washing” in this case could be more or less complex (we must to know the nature of paints, to do the good choice of solvent, to remove it, etc.). The final decision is yours !
Good luck in your choice and best regards,
Marius
  • asked a question related to Paint
Question
6 answers
Do anyone knows what kind of materials could be used to paint a supercapacitor electrode as shown in the picture (the coated black shining materials)? Any help is appreciated. Thanks!
Relevant answer
Answer
Pierluigi Traverso the right top (no shinning) is the graphene active materials, while the left side (shinning) should be some kind of insulation that could be used to define the areal of active materials.
  • asked a question related to Paint
Question
10 answers
Is there a model or other technique to estimate the useful lifespan of zinc-rich paint based on EIS data? I will not be able to undertake long-term testing of actual corrosion rates for comparison.
If a comparative Time To Failure (TTF) in a salt fog environment can be obtained following Kendig's method can this be extrapolated to a TTF in atmospheric conditions? Feliu has done long-term assessment of ZRPs but does not correlate these results to short-term or rapid assessment techniques.
I am aware REAP may not be the ideal method. My colleagues found no disbondment at the scribed edge after 24h immersion and so defaulted to an estimated value for the needed dx/dt term. If a longer-term method is necessary, what is the minimum time period for a reliable estimate of actual period of protection? And what other analysis is advised in either case?
I am looking at a 96wt% Zn (dry film) paint applied over weathered hot-dip galvanising.
Relevant answer
Answer
Zn rich paints are quite different and REAP parameters would not correlate with Zn rich performance. Ray Taylor has done some work in this area. He has a test specifically for Zn Rich paints.
  • asked a question related to Paint
Question
5 answers
i am working in alloy wheel manufacturing company where wheels get paint and goes to the oven for curing and drying. since few days some wheels get matte finishing which is not required as we are using the gloss paint.
so, what would be the reason that glossy paint becomes matte sometimes?
Relevant answer
Answer
Dear Nirmal,
Flat paint it’s also called matte paint. It's completely nonreflective, so the paint will soak up any light directed at it. Flat paint tends to be easier to apply than other finishes and it also usually a less expensive option. It provides a non-reflective, smooth appearance that hides surface blemishes like nail holes and patches. Matte paint requires fewer coats than higher gloss paints and is easier to touch up. This paint is perfect for new construction, drywall, ceilings and low-traffic areas like adult bedrooms and dining rooms.
Glossy paint becomes matte or flat paint?
Gloss and flat paints vary in their concentration of pigment relative to binder. One can make gloss paint flat by adding more pigment, but because pigments are porous and nondurable, you'll be reducing the washability of the surface.
Hope answer is little helpful for you.
Ashish
  • asked a question related to Paint
Question
14 answers
For a senior thesis I am designing an open structure (think kiosk, pop-up shop or other semi-permeable shelter) which will primarily feature a solid roof and basic support geometry. The roof will be pitched and the model will need to illustrate attachment of photovoltaic panels and rainwater re-direction. The structure is designed to securely contain 3-4 machines about the size of 10 gallon paint buckets; the enclosure of which will require some basic moving parts i.e. hinges.
Material possibilities: Extruded and/or corrugated sheet steel, aluminum, wood, concrete, mud/thatch.
While I have some experience with SolidWorks, I have mostly designed small products as opposed to structures and am wondering if I should try modeling in Rhino or another program instead. As a student I should be able to access any program on a trial basis at the very least. If anyone with experience would lend some insight that would be greatly appreciated!
Relevant answer
Answer
I think solidworks is suitable and user friendly.
  • asked a question related to Paint
Question
4 answers
Hi,
does anyone have experience using Gadolinium-Oxide as neutron absorber? In particular, are there any vendors for that? Alternatively, are there recommendations of how to mix paint with Gadolinium?
Best regards
Johannes
Relevant answer
Answer
This site sells you anything you want and ships all over the world through intermediary companies. Any metal shipped to you, cesium, gallium, or Gadolinium-Oxide. But its prices are high. But it gives you pure ampoules
  • asked a question related to Paint
Question
3 answers
Good day, dear colleagues
I have some question for You
I'm working on the powder painting of details with difficult geometry.
The tribostatic method has a good result about this
I try to use electrostatic method to deside this problem. But the Faraday effect is a big problem.
Can anyone give some advice how I can paint the difficult detail (picture in the letter)?
Thank You for Your time
Best regards,
Dmitry Petrov
Relevant answer
Answer
I think that it is necessary to start from the properties of space charges of materials and the processes of discharges in the nterfaces between solid insulators and environment. I send you this reference to explore this path: AIP Advances 8, 095228 (2018); doi: 10.1063 / 1.5047673 /
Regards
  • asked a question related to Paint
Question
13 answers
I am currently researching the components and methods of ochre paint preparation used in rock art from the holocene in North America. While ochre paint use in prehistory is a heavily researched topic, there seems to be a lack of information on the preparation and ingredients used (binders, liquid, any additives). I wonder if there are any documented oral accounts of pigment recipes (I have found some documenting the use of seal fat and linseed oil for instance), or if there are any compendiums of components found in prehistoric ochre paint.
Thank you
Relevant answer
Answer
Hi Madalaine One useful reference is: Rudner, I. 1982. Khoisan pigments and paints and their relationship to rock art. Annals of the South African Museum 87:1-181. There is a lot of ethnography, though mostly on body art and other; but likely applicable to past rock arts. Recent geochemical anlyses by jillian huntley, Rachel Popelka-Filcoff often refer to ethnographic sources (Australian in these two examples). As Neemias says, the information is 'out there' in many different sources - so it would be a great project to collate after your North American work. All good wishes Sven
  • asked a question related to Paint
Question
11 answers
I am from India, where we have dust every where. No matter how frequent we clean, dust keeps on settling like you see in interstellar movie. Its tiring repetitive process of little use to blow/suck air and still over time, sticky dust are on every bump on walls, creeks on windows, etc.
Are there any creative effective ways of handling dust or preventing them in first place? I thought of crazy budget solutions like
1. 24/7 Misty minute water spray from pillars around the house, so as to bring down dust particles at least in my house environment
2. Super hydrophobic paint (can they be anti dust as well?) or super slippery painting or cementing?
I do not know if they work, and if I could afford, so I hit a wall here, looking for help.
Relevant answer
Answer
But the space between house and road is just 1 or 2 feet max... Will grass cover in between could still help? Please check out the space here.
Typically indian city houses r built to cover almost all of area they have leaving very little space between them and road.
  • asked a question related to Paint
Question
2 answers
Old wall paints are generally removed using scrappers/ sandpapers etc. The dust particles are dangerous to health. The problem is need to solve by suitable cost effective mechanism either by using certain chemical to remove paint depending upon type of paint or by certain technique. The quantity of waste materials from removal of paint is need to be disposed off properly or reused for other purposes.
Relevant answer
Answer
Can old paint dust be utilized for filling wide cracks in masonry ?
  • asked a question related to Paint
Question
2 answers
I am working with a waterbased paint with thixotropic behaviour to some extent. I want to know if someone is aware of a way to correlate between the value of viscosity obtained using a Haake Viscotester 550 and a TA rheometer. Thanks.
Relevant answer
Answer
The concept of viscometer and rheometer are different. VM measures the viscosity at a particular shear rate with a limitation whereas the RM could measure the apparent viscosity at the extremely lower shear rate. The reliability of the RM data is high. It is really difficult to compare VM data with rheometer. If you try there will be huge discrepancy will be there.
  • asked a question related to Paint
Question
1 answer
Quantum Yield(QY) decreases significantly when I coat my PbS QDs (It decreases from 50% (in solution form) to a maximum of 18%(in the thin-film). A possible explanation is that QDs get closer to each other in films. Is there any way to improve QY of films? I've tried a number of solutions including embedding in polymers, mixing with paint, varnish, etc, but haven't succeeded yet.
Relevant answer
Answer
Dear Samira Garshasbi, PbS QDsmust be applied to the developed surface and encapsulated. As a solution, I can offer conductive niobium oxide nanocords. I have just submitted a project on this subject together with Chinese scientists. Glad will cooperate. See my work:
  • asked a question related to Paint
Question
1 answer
Dear all,
Is there a database that provides the vulnerability/degradability information of different matrix toward weathering (i.e. the matrix of product used for outdoor application: paint, range of polymer, cement, glass). The data could be in the mass loss by surface by the time of weathering or by energy, if you not possible to get quantitative information, qualitative data could work. Quantitative information and mechanisms detail could be terrific :).
Thanks in advance for any of your responses and your time.
Best regards,
Nathan Bossa
Relevant answer
Answer
No there are no available database for MDM of materials used for exterior applications. People have not thought of it because World is on a path to reduce Carbon footprint and the materials you have mentioned they are combinations of different materials and they can be of different types. All of them contribute more to CF so the trend was not to dig deeper as the material itself did not have a specific mix combination.
But if you wish to do a research on that the would be a breakthrough if you can prove that materials which have low CF have lesser degradation value and materials with high CF have higher degradation value.
  • asked a question related to Paint
Question
6 answers
Greetings,
Currently, I am trying to develop a new paint formulation. I already have in mind on what type of pigment and additive that I want to use. The problem is, I do not have a good idea on the type of binder to select. I have seen quite a lot of paint been commercialized, but I am worried that if the paint I buy on market will already have their own pigment and additive. If yes, then the uncertainty of what type of pigment they used will not give me a clear understanding on its formulation.
So, can anyone give me specific suggestion on the type of paint binder to buy? Probably the key words to find them will also be useful.
Relevant answer
Answer
The best binder are epoksy resins with suitable hardner(s). But I found new paints that are based on e.g. polyaspargine resins.
Best regards, Stefan Krakowiak
  • asked a question related to Paint
Question
3 answers
Hello.
I am trying to formulate a waterborne coating for marine purpose. The problem is, i could not find a suitable binder such as resin/acrylic paint for this project. Some of commercialize binder already pigmented. Where can i find pure acrylic/resin that suitable for waterborne coating.?
Thank you
Relevant answer
Answer
Thank you for your answers Dr Pierluigi Traverso and Dr Andreas Heyn . Have a great day
  • asked a question related to Paint
Question
2 answers
I’m supposed to synthesize alkyd resin while the reaction setup is made anaerobic by nitrogen gas. However, the procedures I have read use sparging rate (i.e. 0.05 cubic feet/sec for alcoholysis and 0.1 cubic feet/sec for polymerization) instead of pressure. Do I need to get a flowmeter or is there a way to do the procedure without?
Relevant answer
Answer
Dear Paris Eda Emmaris Belber, normally this N2 tank outlet id equiped with a pressure gauge so that you will be able to adjust the N2 flow rate. My Regards
  • asked a question related to Paint
Question
3 answers
Why snow an paint are called black bodies though they look white to us..
Relevant answer
Answer
Black body (or black body radiation) is a term introduced by physicists in the 19th century, to describe the thermal radiation emitted by a body. The intensity and spectrum of such a radiation is only dependent on the temperature of the body.
The term "black" is to denote the idealized case where the body is opaque (i.e. non-reflective) in all the frequencies of the electromagnetic spectrum.
Even though snow is highly reflective in the visible part of the spectrum, it can be idealized as a "black" (or opaque) body in the infra-red part of the electromagnetic spectrum, only absorbing and emitting radiation, but not reflecting.
To wrap it up, snow is a black body in a thermal-radiation-sense, not in a visible-light-sense.
Hope this helps.
  • asked a question related to Paint
Question
3 answers
­­In the steel construction sector, the same types of paint are used from project to project. Each type of paint is designed to meet specific needs to satisfy the particular requirements of each individual project. Paint finishes can be used for esthetic purposes, permanent or temporary protection, and color identification. First types of paint generally utilized in the industry is the standard grey primers are generally provided as alkyd paints, the grey primer applied to joists either by dipping or with a paint gun is normally an alkyd paint ....
How can we carry an evaluation study for such materials that must be used in sever conditions...?
Relevant answer
Answer
The normal way to achieve this is to set up exposure sites in coastal, near coastal , industrial and rural locations. This might be somewhat challenging in Iraq. The standard tests will not suffice, as these need to be related to your conditions. There are sites in Australia that you could use as models. These are run under the auspices of CSIRO Melbourne - contact +61 3 9248 4900 or https://www.csiro.au/en/Do-business/Services/Materials-infrastructure/Coatings-and-materials or csiroenquiries@csiro.au for more information.
  • asked a question related to Paint
Question
5 answers
what is the main difference between paint and polymer coating in formulation. I mean the ingredients like additives etc. Also is there any difference between them from curing viewpoint?
Relevant answer
Answer
The Formulation is a science apart. It is the science that studies complex mixtures such as paints, cosmetics, fertilizers, etc. This science requires the formulator to have a thorough knowledge of chemistry, physicochemistry, polymers and rheology.
The polymer is the essential constituent in most formulated products: binder in paints and varnishes, rheological agent (viscosity regulator) in paints and cosmetics, ..
A painting is a complex mixture. It generally consists of: binder (s), pigment (s), filler (s) and solvent (s).
Warning:
- there are powder paints (no solvent)
- the solvent can be an organic liquid or the water
- there are solvent-free liquid paints
Don't hesitate if you need more explanation
  • asked a question related to Paint
Question
5 answers
Hello, I'm a recent BSc graduate starting a Masters in the coming weeks. My interests lie in the areas of woodland fragmentation and, more specifically, carrion and Silphid ecology. My undergrad dissertation looked at species abundance and richness in different woodland sizes using baited non-lethal pitfall traps. My question, if it is appropriate to ask, relates the choice of topic/design for my Masters thesis. Of course, I haven't started with the university yet, but I thought it would be good to get some preliminary input.
I collected a good amount of sources (around 40-50) on Silphid ecology and I have a decent grounding, at least at BSc level, of the issues that Silphids face in relation to their changing environments. I just wonder how I might elevate my studies further and employ 'Masters level' techniques.
My study was limited in that it used only 4 woodlands (2x ' large', 2x 'small') and did not take into account any environmental factors. It was essentially a comparison between the Silphid composition of the large and small fragmented woodlands set apart by 2 miles (out of olfactory detection rage). Recurring individuals were noted by non-toxic marking paint applications each sampling session.
I suppose if I were to ask a more concrete question: what would you say would be a good and achievable Silphid research paper/experimental design? I have a few ideas on how to elaborate on my original work, for example by including more advanced woodland metrics, increasing the sample size of woodlands, accounting for canopy density (something which may impede Silphids), etc. but I would like to tackle a real and genuine problem. We know already that Silphids are affected by fragmentation. I like the idea of using real carcasses to assess interment rate as I'd be able to show more clearly the effect on the ecosystem service, but I don't think that would add much to the literature as we know carcasses are less prevalent where mesopredators are abundant, e.g. edge. I wonder if I could use micro satellites? That may beyond my skill set at the moment though.
Put simply, is anyone able to provide a definite question they would like to be answered about Silphids? It would be very helpful. A lot of the papers I read recently were quite above my level and involved genetic analysis, so it's hard to gauge which sort of research question may be appropriate for me.
Relevant answer
Answer
Dear Taylor,
Perhaps a metapopulational approach could provide a good frame to your project. See papers by Hanski.
Keep in touch
Best,
Guy
  • asked a question related to Paint
Question
4 answers
Hi I am preparing enamel paint from alkyd of medium oil length. I found that the first coat of paint is getting tack free in 7-8 hours whereas the second coat is tack free in 5-6 hours. Can anyone explain this phenomenon of fast drying of second coat over the first one.
Relevant answer
Answer
Dear Vinay Khandelwal, my proposed explanation is as follow. I think the metal surface plays an adverse effect on the hardenning of the coat film. It inhibits and retards the Polymerization process. The upper 2nd coat forms rapidly because the course of the polymerization is not affected by the metal surface since it is isolated by the first coat film. The attached file give more details. My Regards
  • asked a question related to Paint
Question
4 answers
I am interested in learning on the topic of VOCs emission by marine coating. I have read some articles which claim that VOCs emission does not only emitted during the initial stage of application, but can continue to do so for a long period of time. As such, I have been thinking, since coating applied on marine vessel is exposed to the aggressive solution of seawater, wont this accelerate the oxidation of the coating and faster released of VOCs?
I try to find any articles in relate to the topic and idea, but sadly I cannot find much. Any help would be much appreciated. Thank you in advance !
Relevant answer
Answer
Dear Wan,
thanks for the interesting question you made.
Generally speaking, the VOC emission by a paint is related either to the organic solvent or cosolvent used (only in the case of solventborne systems) or to the unreacted monomer. Is it true that a not optimized systems can present a slow release of VOCs along the time but, to be introduced in a market place, the regulation (https://www.coatings.org.uk/vocproductregulations.aspx) imposes that, in the case of the unreacted monomer, the concentration should be very low depending to the final application.
However, depending of the polymer, is quite common using post-polymerization step to break-down the unreacted monomer concentration.
With respect to the coatings used in the marine environment, due to the aggressive salt water the degradation (not oxidation) of the coating happens after some time and the release of part of the paint (by delamination, blistering and deterioration of the substrate) occurs instead of the VOCs release. Said so once the coating formulation is optimized (low concentration of unreacted monomer and optimal film formation, which means lowest concentration of retained solvent) the VOCs release after some time from the coating casting is not likely to occurs.
However this is an interesting and always evolving topic and if you find any interesting additional information please share with us.
Here you can find some book on the general information about the application and performance of anticorrosion organic coating
- Sander, J. (2010). Anticorrosive Coatings. Vicentz Network, Hanover, Germany.
- Knudsen, Ole Øystein, and Amy Forsgren. Corrosion control through organic coatings. CRC Press, 2017.
Best
Stefano
  • asked a question related to Paint
Question
3 answers
Is it possible to add metallic power (Fe, Co) to a type of epoxy, to create a "paint" that is susceptible to inductive heating?
I have attempted to add Iron power to a carbon based high temperature epoxy and inductively heat it, however I could not reach temperatures beyond 100C. Perhaps if the epoxy was electrically conductive, this method might work?
I have not found any product online that is designed for this.
Relevant answer
Answer
dear Phil Denby ;
there is an epoxy adhesive consisted of Aluminium metal
  • asked a question related to Paint
Question
10 answers
Hi everyone! What is the best way of marking a money spider with a body length of 1.6 - 2 mm. Using a non-toxic and odourless acrylic paint seems the best option so far, but how to apply it safely without harming a spider? Does anyone have experience? Any suggestions are appreciated.
Relevant answer
Answer
One of the methods used in the past is fluorescent powders. Getting some on the abdomen may mark them for a period of time, but you will be limited in the number of spiders you can have marked (based on recognizable colors) and you would need to darken the room (or work at night outside) to ID the individuals.
  • asked a question related to Paint
Question
6 answers
I have a cylinder which is 3D printed. Due to the material being porous, when submerged it absorbs water and eventually softens and misshapes over time. This cylinder has a complex surface topology on. I need to find a way to coat a water-resistant material on it but in a way that assures thickness uniformity everywhere on the surface. That is the reason we cannot paint it with a spray paint or a brush. We need to make sure we do not mess up the surface topology.
Relevant answer
Answer
Andreas, I completely agree with you that electroless process is the best thinkable option. I just think of applying palladium catalyst to the surface first...
  • asked a question related to Paint
Question
4 answers
I work with insects and the anti-climbing paint seems to get everywhere. How can I remove it from my clothes? It seems very resistant to general washing and water, any safe solvents I could use to remove it?
Relevant answer
Answer
Try Varsol, mineral spirits (US, Canada), also known as mineral turpentine , turpentine substitute, petroleum spirits, solvent naphtha (petroleum), Varsol, Stoddard solvent, or, generically, "paint thinner", is a petroleum-derived clear liquid used as a common organic solvent in painting.
Thimmareddy Sanji<