Silicone Defoamer
CAS Number: 63148-62-9
Polydimethylsiloxane (PDMS) based defoamer with hydrophobic silica particles that provides powerful foam control in industrial processes, waterborne coatings, adhesives, and fermentation. The ultra-low surface tension silicone base rapidly spreads across the foam surface, destabilizing and collapsing foam cells. Available in aqueous emulsion and 100% active concentrate forms.
Technical Specifications
| pH | 6.0 – 8.0 |
| viscosity | 500 – 2000 mPa·s (25°C) |
| appearance | White to off-white emulsion |
| particle size | < 5 μm |
| active content | 30 ± 2% |
Applications
- Waterborne industrial and decorative coatings
- Pulp and paper processing
- Fermentation and biotechnology
- Wastewater treatment
- Textile dyeing and finishing
Key Features
- Very fast foam knockdown and sustained suppression
- Effective at extremely low use levels (10–100 ppm)
- Wide temperature and pH operating range
- Non-toxic and environmentally acceptable grades available
- Stable in storage for 12+ months