In the production and application of glossy water-based enamel, the choice of defoamer significantly impacts film appearance. Chemi Tech's specialized defoamers for high-gloss systems effectively eliminate foam while preventing surface defects like craters or fisheyes.
Key Selection Criteria
1. Compatibility: Chemi Tech defoamers feature tailored molecular structures for excellent compatibility with water-based resins, avoiding oiling or separation.
2. Particle Size: Uniform nano-sized distribution prevents haze or gloss reduction caused by residual defoamer.
3. Stability: Maintains activity during high-speed dispersion and application, ensuring long-term foam suppression.
Application Guidelines
- Dosage: Recommended at 0.1%-0.3% of total formulation, optimized via gradient testing.
- Timing: Add during paint adjustment phase to avoid efficiency loss from thickener interaction.
Chemi Tech defoamers are widely used in automotive refinish and premium furniture coatings, with proven performance in balancing foam control and aesthetic quality. Proper selection and process integration can dramatically improve the yield of glossy water-based enamel.