Bubble Issues in Thick-Coat Coatings and Chemi Tech Defoamer Solutions

Thick-coat coatings often face bubble formation during production or application, which compromises surface quality and performance. Bubbles primarily result from air entrainment during mixing, gas release by chemical reactions, or trapped air in substrate pores. To address this, Chemi Tech defoamers utilize specialized chemical formulations to rapidly collapse bubbles and suppress foam regeneration.  

Advantages of Chemi Tech Defoamers:  

1. High Efficiency: Quickly penetrates foam films and reduces surface tension for instant bubble breaking.  

2. Long-Term Stability: Maintains activity under high temperature and shear conditions, preventing post-application bubbling.  

3. Excellent Compatibility: Suitable for epoxy, polyurethane, and other thick-coat systems without affecting leveling or adhesion.  

Application Guidelines:  

- Recommended dosage: 0.1%-0.5% of total coating weight (adjust based on system requirements).  

- Add during the grinding phase for uniform dispersion.  

By applying Chemi Tech defoamers, manufacturers can significantly improve coating yield and application efficiency, eliminating defects caused by bubbles.