Baking performance of water-based glass paint - ask an expert for water-based paint. Question: I would like to ask about the water-based glass baking paint .Water has a boiling point of 100 degrees Celsius, so if you bake it at 140 degrees, it won't boil and bubble up and destroy the film. Right? Response: Water - based paint to balance the evaporation of water and film curing between the relationship .Usually because the film is thin(about 20 microns) .Basically, the water in the paint film evaporates almost before the temperature reaches 100C,and even if the temperature reaches more than 100C,Because the resin has not fully crosslinked, strong plasticity, can ensure the migration of water vapor,so usually the evaporation of water will not cause the bubble in the paint film . This point, water based paint and solvent-based paint no difference, many solvent-based paint baking has exceeded the boiling point of the solvent, but the bubble is the same principle to avoid . Of course,When the film thickness increases, this problem will be one of the factors considered in the process, which can be solved by adjusting the baking time and heating speed . For more information on water-based coatings, you can also visit Sinograce Chemical's waterborne coatings knowledge base,and our water based recipes. It is the goal of Sinograce Chemical to promote the development of waterborne paint in China. Hope the above explanation is helpful to you. Sinograce Chemical produces waterborne polyurethane resin for water based glass paint, as well as glass ink resin, welcome to inquire. visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511

How to solve the water - based acrylic paint back adhesion problem? - ask a water-based paint expert Problem: How to solve the water - based acrylic paint back adhesion problem? Water - based acrylic paint back adhesion is a problem often encountered by water - based paint formulators.In order to solve the problem of water - based acrylic paint adhesion, we must fundamentally understand the reason of water - based acrylic paint adhesion .The readhesion of waterborne acrylic paint is due to the increase of rheological properties of linear thermo plasticpolymer at higher transition temperature than glass.The solution of water - based acrylic paint back adhesion can be considered from several perspectives. 1.High Tg acrylic resin was added and fast volatile film forming agent was used 2. Use self-crosslinking acrylic resin as far as possible 3.Choose acrylic emulsion with smaller particle size as far as possible 4.Add PUD. PUD has a certain thermosetting property and can reduce thermoplasticity 5.Add the wax emulsion. Wax emulsion can form wax film on the coating surface and reduce the surface viscosity 6.If the resin system contains carboxyl group, a little metal salt such as zinc or oxide can be added to play the role of ion crosslinking 7.Add filler with smaller particle size For more information about waterborne coatings, you can also visit the Sinograce Chemical industry news waterborne coatings repository, and the recipes in our waterborne coatings repository.Or ask questions directly to us through our water-based paint expert column. To promote waterborne paint in China is the goal of Sinograce Chemical. I hope you found the above explanation helpful. Sinograce Chemical produces acrylic emulsion, acrylic resin, for water based ink emulsion, Water Based Adhesive, water based industrial paint, water based building glue and other water based coatings. visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511

How to solve the poor adhesion of water-based paint after soaking in water? Problems: water-based acrylic resin, self-drying system,60 ℃ / 120 minutes after the bubble row down into the water, can use fingernail.But after taking out to wait for water to be able again, how should solve? Response: This test method is still very harsh.General water - based resins, acrylic acid, polyurethane or Self-crosslinking single component system, are difficult to meet.Consider the following alternatives： 1.Avoid resin systems with common surfactants. 2.If the resin system contains carboxyl group, why consider adding zinc salt to increase the crosslinking degree? 3. You can also consider adding some wax emulsion to increase the hydrophobicity of the formula. Sinograce Chemical produces acrylic emulsion, acrylic resin,water based polyurethane resin , wood paint, water based industrial paint, water based building glue and other water based coatings. visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511

Ask the water-based paint expert -water-based glass paint appears prickly heat when baking Problem: I use water-based acrylic and amino resin to make the glass paint when baking prickly heat. The details are as follows: Temperature: 80 degrees Time: 2 minutes It was already smooth when it was put into the oven Flash dry for 10 minutes Has been changed to defoamer, leveling agent, solvent, no effect. I would like to ask if there is any way to eliminate the prickly heat . Thank you . Answer Analyze (1) because your baking temperature is 80C, then the coating temperature is the highest but 80C, at this temperature, if you do not add a lot of catalyst in the system, there should not be any chemical reaction to cause bubbles. (2) the bubbles you see are probably caused by substances with low boiling points in the original recipe. Usually amino resins should not have this kind of problem. The problem may lie in other components of your recipe . Solution You might as well do an experiment, starting with the acrylic resin, one by one component to add, after each addition do coating baking experiment, until find the component foam . For more information on water-based coatings, you can also visit SINOGRACE CHEMICAL water-based coatings knowledge base, and our water-based paint recipes for water based metallic paints. It is SINOGRACE CHEMICAL goal to promote the development of waterborne paint in China. I hope you found the above explanation helpful. For more information on water-based coatings, you can also visit SINOGRACE CHEMICAL water-based coatings knowledge base, and our water-based paint recipes for water based metallic paints. It is SINOGRACE CHEMICAL goal to promote the development of waterborne paint in China. I hope you found the above explanation helpful. Sinograce Chemical co., LTD produces chemical additives for water based paint, such as defoaming agent, thickening agent, leveling agent, wetting agent visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511