News
High-viscosity waterborne coatings often face bubble defects during production or application, affecting surface quality. Chemi Tech specializes in defoamers and offers the following technical analysis and solutions.
1. High Viscosity: Thick coatings trap air bubbles, preventing natural escape.
2. Mechanical Shear: Mixing or pumping introduces air, forming stable foam.
3. Surfactant Residue: Wetting agents in formulations may stabilize foam.
1. Fast Bubble Breaking: Unique molecular design rapidly disrupts foam surface tension.
2. Long-Term Foam Control: Prevents post-application re-foaming for smooth finishes.
3. Formula Compatibility: Optimized for thick coatings without affecting flow or gloss.
- Timing: Add during grinding phase for even dispersion.
- Dosage: Adjust between 0.1%-0.5% based on formulation tests.
Chemi Tech defoamers are lab-proven to reduce bubble defects in high-viscosity coatings, improving yield. Contact the technical team for customized solutions or samples.
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