In spray coating operations, foam is a common problem affecting coating quality. Residual bubbles cause defects such as pinholes, cratering, and orange peel on the coating surface, which not only affect appearance but also weaken the protective performance of the coating, resulting in rework and wasted costs. The market generally faces the pain points of poor defoamer compatibility, insufficient durability, or adverse effects on coating gloss and transparency.
In response to these challenges, Chemi Tech, leveraging professional chemical technology, has developed a series of highly efficient defoamers for spray coating. The core of our solution lies in precise molecular design, ensuring the product can quickly break foam and inhibit it over the long term, while maintaining excellent compatibility with various resin systems without affecting the final performance of the coating.
The specific solution steps are divided into four: the first step is problem diagnosis, analyzing the specific stage where foam is generated (such as production, stirring, or application) and the coating system; the second step is product selection, and we offer multiple models to suit different systems such as waterborne and solvent-based; the third step is addition and testing, guiding the customer to add at the right process point and conduct a trial evaluation; the fourth step is process optimization, providing the optimal dosage and subsequent process recommendations to ensure a stable defoaming effect.
We once assisted a metal products manufacturer in East China. In the topcoat spraying of its high-end metal parts, it was constantly troubled by surface defects caused by fine bubbles, resulting in a high customer complaint rate. After on-site inspection and laboratory matching by our technical team, we recommended a defoamer specially designed for fast-drying solvent-based systems. After incorporating the provided addition plan into the production process, the sprayed paint film surface became smooth and flat, the pinhole problem was basically eliminated, and the first-pass acceptance rate of the product rose significantly; at the same time, the production line improved overall efficiency by reducing rework.
Choosing Chemi Tech means choosing a reliable guarantee of coating quality. Our defoamer products are dedicated to helping you overcome foam difficulties and achieve more efficient, higher-quality spray coating production.