Question: Dear expert, I am now eager to develop a new water-based paint mainly for wood. The problem that needs to be solved urgently is the drying time of water-based paint. I want his dry time to be in 30 seconds, can you achieve excuse me, excuse me be colophony its key effect. Response: Hello, the dry time of water - based paint has two concepts commonly."Surface dryness" refers to the basic dryness when touched, while "actual dryness" describes the state in which water completely evaporates.For your problem, I guess you are referring to the dry surface time of the paint. Usually the surface is required to evaporate at least 80% of the water.The evaporation rate of water is slower than that of solvent-based paints. This is a physical property that cannot be changed.The only way to speed up the evaporation rate of water is to bake. Our experience is that for a 20 micron thick film, the substrate temperature is above 150C, and it is possible to evaporate and dry most of the water in about 60 seconds, which is generally unrealistic for wood. The type of resin does have an effect on the drying rate.Such as Sinograce Chemical of Special resin polymer for Acrylic Industrial coatings PF - 136 is outstanding in terms of quick drying.But the best resin is unmatched by the 30-second indicator you mentioned. I do not know why you "dry time within 30 seconds" requirements? Is it possible to extend the drying time by changing the process?You can also check out our blog for a special article on how to achieve quick drying in recipes. Quick drying (2)。For more information about water-based coatings, you can also visit Sinograce Chemical'swater-based coatings knowledge base, and the recipes in our water-based coatings library. Or ask questions directly to us through our water-based paint expert column . 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

Common problems of water-based paint: causes of shrinkage and solutions Shrinkage, known as cratering, is a common problem with water-based paints。The main cause of shrinkage cavity is impurities in water-based paint. In particular, there is oil in the area where the shrinkage cavity occurs, making the area unable to be wetted.In practical operation, the main causes of shrinkage cavity are as follows: 1.The substrate is contaminated with oil or impurities 2.Apply a paint to the old paint or finish without sanding 3.The construction interval between the two paints is too long 4. Too much defoamer in the paint The difference in surface tension is the main cause of the formation of shrinkage cavities.Low viscosity of the coating is conducive to the flow of the coating, and low thixotropy increases the flow time of the coating. Not conducive to the control of shrinkage holes.Therefore, reducing the source of shrinkage cavities which cause a difference in the surface tension of the coating, improving the viscosity of the coating and improving the thixotropy are all favorable for resisting the formation of shrinkage cavities.Specifically, the shrinkage cavity can be reduced from the following aspects: 1.Thoroughly polish and clean the substrate, and seal it with shellac if necessary 2.Shorten the interval and polish the surface to be painted 3.Add leveling agent appropriately 4.Check the compatibility between the antifoaming agent and the system, and choose the defoaming agent with good compatibility 5.Use a hydrophobic dispersant in combination with a high molecular weight thickener, and appropriately add an antifoaming agent to prevent agitation and foaming. Sinograce Chemical production chemical additives for water based paint, such as defoaming agent, thickening agent, leveling agent, wetting agent, welcome to consult, there will be professional recommended for you. visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511

Problem：Some of the materials used in the construction of wood products are plywood and wood chip fiberboard. One of the rubber is the most afraid of water, water paint spray will dissolve the inside of the glue. The effect that USES close lacquer also is not ideal, how should solve? Is it easy to use sinograce chemical raw material solution? thank you . Response:This type of wood is usually bonded with a phenolic resin, which is water-resistant.Are you sure the glue has been dissolved? What is the phenomenon that you see? Is the wood deformed, not necessarily the glue dissolved?The commonest problem of waterborne coating is lumber be out of shape, this is the hydroscopicity that causes as a result of lumber itself. We've just published an article on wood ridges on our website, and it describes some of the treatments.Including the use of our Special resin polymer for Acrylic Industrial coatings PF - 136 products, you can refer to it. It is sinograce chemical goal to promote the development of waterborne paint in China. I hope you found the above explanation helpful. Sinograce chemical Specializes in producing waterborne coatings, waterborne wood lacquer,topcoat ,primer etc. To learn more, please click here visit us sinograce chemical: https://www.sinogracechem.com Get a Quote Now :sales@sinogracechem.com Telephone :+86 0551 63459511

April 12, 2019, the 40-days orange war ended, every  partners in this war to pay 100% of the effort, made a different victories,, although the end of the war, but we never give up, the spirit of teamwork will always be maintained, let us move forward.