In the preparation and application of water-based acrylic coatings, foam generation is a common and troublesome problem. This foam not only affects production and filling efficiency, but also forms unacceptable defects on the coating surface, such as cratering, fish eyes, and dense pinholes, seriously damaging the coating's decorative and protective functions. Traditional defoaming methods often have a short-lived effect or poor compatibility with the system, causing new surface problems.
Chemi Tech focuses on addressing this challenge. We deeply understand that effective defoaming must run through the entire process of coating manufacturing, in-can storage, and final application. Therefore, our solution is not a single product, but is based on a precise analysis of your specific formula system. Through special modification, our defoamer can quickly penetrate and destroy the foam film wall, while maintaining good compatibility with acrylic systems, avoiding surface defects and ensuring durable and efficient defoaming.
The specific solution is divided into three clear steps. First, add it before the grinding and dispersion stage; we recommend using the Chemi Tech series of products, which can effectively eliminate the large amount of air introduced by high-speed stirring. Second, supplement the addition in the later stage of letdown; use the series of products, which focus on solving the fine foam generated by surfactants and ensure product storage stability. Finally, for high-viscosity or foam-prone application environments, we can provide a series of products that continue to work during roller coating or spraying to prevent the generation of application-related pinholes.
We once assisted a manufacturer focused on industrial maintenance coatings in solving its problem. The customer's water-based acrylic topcoat always showed sporadic pinholes after spraying, affecting the coating's appearance. After our technicians analyzed its formula and process, we suggested adjusting the type and dosage of the defoamer at the letdown stage and optimizing the order of addition. After the adjustment, the coating performed excellently in both laboratory tests and actual spraying, the foam was quickly eliminated, and the coating surface was smooth and flat, with the customer highly recognizing the final result.
Choosing Chemi Tech means you gain not only a product, but also a set of targeted technical support and problem-solving strategies. We are committed to helping your water-based acrylic coatings show their best performance, protecting the perfection of every coating from the source to the end.