RT9202W High-Performance Polyether Siloxane Defoamer for Industrial Coatings
RT9202W is a polyether siloxane emulsion containing fumed silica, with an active content of 25% ±2. It is recommended for paint mixing stages, demonstrating excellent compatibility and defoaming performance.
- Suitable for various aqueous formulations
- The best combination to eliminate large and micro bubbles
- High compatibility
- Highly suitable for medium and low viscosity formulations
RT9202W Modified Defoamer TDS
- Technical Data Sheet
| Chemical composition | Polyether-siloxane copolymer emulsion. Contains fumed silica. |
| Active content | 25%±2 |
| Appearance | White, opaque liquid |
| Density | 0.98-1.08 g/cm³ |
| Recommended amount | 0.1-3.0% of the total formulation |
| Usability | |
| Usable | Water-based, add during paint mixing |
| Partially Usable | Add during grinding |
| Unusable | Oil-based, Two-component 100%, Radiation curing |
| Solubility | |
| For stability reasons, it is not recommended to dilute the emulsion with organic solvents. | |

Suggested Applications
●●●● Airless spraying
●●●● Compressed air spraying
●●○○ Flexographic and gravure printing
●●●○ Brush application/roller application
●●●● Self-leveling
●●●○○ Immersion, flow coating, spray coating
Operational Instructions
- The long-term efficacy of the product depends on the specific formulation, and individual formulations should be tested separately.
- Add to the paint according to the supply status.
- Stir briefly with low shear before use.

RT9202W Silicone Polyether Defoamer Typical Applications
Why Choose RT9202W for Water-Based Coating Formulations?

Advantages
Process-Specific: Highly effective when added during the paint mixing stage to instantly resolve high-shear foam issues.
Application-Flexible: Fully compatible with airless/air spraying, self-leveling, and brush/roller applications.
Stability-Focused: Maintains excellent emulsion stability in water-based systems without the need for organic solvent dilution.
Economical: Delivers premium defoaming performance at low addition rates (0.1-3.0%) across wood, industrial, and plastic coatings.
How to Choose the Right Defoamer?
| RT9202W | RT9030W | |
| Main Application | Water-based industrial coatings, inks, general aqueous systems | Clear varnish, wood coatings, appearance-sensitive coatings |
| Main Function | Strong foam and micro-bubble control | Balanced defoaming and compatibility for clear systems |
| Recommended Systems | Medium/low viscosity formulations, self-leveling, industrial paints | Clear coatings, decorative coatings, transparent finishes |
| Key Advantage | Efficient foam elimination with broad compatibility | Maintains coating appearance while controlling foam |


Packaging and Storage
Store in a dark place, keep unopened and stored at 5°C to 35°C. The product has a shelf life of 12 months from the date of production.
25kg per barrel, with customized packaging for customers.
Download the TDS or Contact Our Experts for a Customized Formulation
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FAQ About RT9202W Modified Defoamer
RT9202W defoamer is recommended to add during paint mixing, and can be partially used during grinding if needed.
It performs best in medium and low viscosity formulations.
It is a type of polyether-siloxane defoamer which is designed to balance strong defoaming with good compatibility to minimize silicone defects.
No. For stability reasons, dilution with organic solvents is not recommended.
Yes. We offer technical support, product selection guidance, and customized formulation recommendations based on your application requirements.
Yes. Our team can continue to assist with application questions, usage feedback, and product-related technical support after purchase.
We are a manufacturer-focused supplier with production and export experience, providing both product supply and technical service support.












