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High thermal stability up to 250 °C continuous use temperature
Excellent weathering and UV resistance for long-term outdoor performance
Good compatibility with organic resins and pigments
Low surface energy enabling superior water repellency and anti-graffiti properties
Solvent-based formulation (xylene/toluene blend) for easy integration into coating systems
High-performance silicone-modified acrylic exterior wall coatings
Weather-resistant façade protection systems for concrete and masonry
Heat-resistant topcoats for industrial metal substrates
Water-repellent impregnation treatments for natural stone and brick
Anti-graffiti clear coats for architectural surfaces
| Chemical Type | Methyl/phenyl silicone resin |
| Product Form | Liquid, solvent-based solution |
| Appearance | Clear, colorless to pale yellow liquid |
| Solvent System | Xylene/toluene mixture |
| Non-Volatile Content | Approx. 50 wt% |
| Viscosity (25 °C) | Approx. 100–200 mPa·s |
| Density (20 °C) | Approx. 0.92–0.95 g/cm³ |
| Flash Point (PMCC) | Approx. 35 °C |
Q1: What is the primary function of SILRES BS 50 in coating and ink formulations?
A: SILRES BS 50 functions as a hydrophobic, heat-curable silicone resin modifier that enhances surface hardness, mar resistance, and water repellency while maintaining compatibility with organic polymer systems such as acrylics, alkyds, and polyurethanes.
Q2: Is SILRES BS 50 suitable for water-based systems?
A: Yes — it is supplied as an aqueous dispersion and is specifically designed for easy incorporation into waterborne coatings, emulsion paints, and pigment dispersions without requiring organic solvents or extensive high-shear mixing.
Q3: How does SILRES BS 50 contribute to thermal stability in finished films?
A: Upon thermal curing above ~120 °C, the resin undergoes condensation crosslinking to form a robust, inorganic-like silica network, significantly improving the film’s resistance to thermal degradation and long-term performance at elevated temperatures.
Q4: Can SILRES BS 50 be used in food-contact coatings?
A: SILRES BS 50 is not pre-approved for direct food contact; its use in such applications requires full regulatory assessment by the formulator, including evaluation against applicable regional food-contact legislation and migration testing under intended conditions of use.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
