In spray painting operations, high-viscosity paints or specific working conditions often cause the circulating liquid in water wash booths to generate large amounts of stubborn foam. This foam not only overflows, contaminating the floor and impacting safety, but also adsorbs substantial paint mist particles. This leads to reduced pump efficiency, pipe blockages, and can result in inadequate paint mist treatment, ultimately affecting the surface quality of the workpiece. Traditional defoaming methods often offer only temporary relief or fail in high-viscosity systems, becoming an ongoing challenge for many production workshops.
Addressing this market pain point, Chemi Tech has developed a high-efficiency defoamer specifically formulated for high-viscosity water wash booth environments. Based on a unique modified silicone-polyether compound technology, its molecular structure rapidly penetrates and spreads across the foam film surface, effectively reducing local surface tension and causing the foam film to thin and rupture quickly. More importantly, it remains stably dispersed in the circulating liquid, providing long-lasting foam suppression. Even in environments with high solids content and high-viscosity paint mist, it continues to perform effectively.
Our solution is concrete and easy to implement. Step one is Assessment and Cleaning: We recommend draining and performing a basic cleaning of the existing water wash booth system to minimize interference from old liquid residue on the new product's effectiveness. Step two is Initial Dosing: Add the Chemi Tech defoamer directly into the sump tank at a ratio of 0.1%-0.3% of the total water volume, then activate the circulation system for even dispersion. Step three is Routine Maintenance: During continuous spray operations, based on foam generation, replenish a small amount of defoamer at regular intervals, typically 10%-20% of the initial dose, to maintain a foam-free system.
Practice demonstrates the significant effectiveness of this solution. An automotive parts painting company faced severe foam buildup in its water wash booth when processing a high-viscosity primer, requiring hourly shutdowns for cleanup, with occasional oil spots appearing on workpiece surfaces. After adopting the Chemi Tech defoamer and following the steps above, foam was comprehensively controlled within 15 minutes of addition, requiring only minimal replenishment per shift thereafter. The system achieved continuous operation, pump load returned to normal, and the defect rate on workpiece surfaces caused by foam carryover significantly decreased, leading to simultaneous improvement in workshop environment and production efficiency.
Choosing Chemi Tech means not just selecting a product, but introducing a reliable and professional foam control system for your spray painting line. We are committed to helping customers resolve process challenges with precise chemical solutions, achieving stable, efficient, and clean production goals.
Guangzhou Chemi Tech New Material Co., Ltd.
Address : No. 3 Road, Lanshan Village, Xiancun Town, Zengcheng District, Guangzhou City
Contact : +86-19820415595(Manager Fang)
Tel : +86-13414362583(Manager Lee)
E-mail : crystal@gzchemitech.com
