Bubbles in mechanical anti-rust paint can compromise protective efficacy and surface finish. Chemi Tech defoamers effectively address this issue, but proper addition techniques are critical.
1. Timing
Add the defoamer during the mixing or grinding phase to ensure homogeneous dispersion. Late-stage addition requires low-speed stirring to prevent foam regeneration.
2. Dosage
Refer to Chemi Tech guidelines, typically 0.1%-0.5% of total paint volume. Excessive use may cause craters or adhesion loss.
3. Mixing Method
Pre-blend the defoamer with a small portion of base material before incorporating it into the main system. Maintain temperature below 50°C during high-speed mixing.
4. Compatibility Test
Conduct small-scale trials to verify compatibility with resins and fillers in specific paint formulations, ensuring no adverse effects on film properties.
5. Storage
Store unused defoamer in a sealed container away from heat to prevent separation or degradation.
Following these steps enhances the application quality and final film performance of mechanical anti-rust paint. Chemi Tech defoamers deliver reliable efficiency for industrial applications.