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High thermal stability, maintaining integrity up to 250 °C continuously.
Excellent weather resistance and UV stability for long-term outdoor performance.
Good compatibility with organic resins (e.g., acrylics, polyesters) enabling hybrid formulations.
Low surface energy providing inherent water repellency and anti-soiling properties.
Solvent-based liquid format ensures easy handling and integration into existing coating lines.
High-performance architectural coatings for façades and concrete protection.
Heat-resistant topcoats for industrial metal substrates and exhaust components.
Water-repellent impregnation treatments for natural stone and mineral building materials.
Functional additives in silicone-modified emulsion paints and plasters.
Binders in high-durability roof coatings and elastomeric membranes.
| Chemical Type | Methyl-phenyl silicone resin |
| Product Form | Liquid, solvent-based solution |
| Appearance | Clear, colorless to pale yellow liquid |
| Solvent | Xylene / aromatic hydrocarbon blend |
| Non-Volatile Content (wt %) | 50 ± 2 % |
| Viscosity (25 °C, mPa·s) | 800 – 1,200 |
| Density (20 °C, g/cm³) | 0.94 – 0.97 |
| Flash Point (PMCC, °C) | Approx. 35 |
Q1: What is the primary function of SILRES BS 320 in coating and ink formulations?
A: SILRES BS 320 acts as a surface modifier and crosslinking agent, enhancing scratch resistance, mar resistance, and substrate wetting while maintaining film flexibility and transparency.
Q2: Is SILRES BS 320 compatible with conventional organic resin systems?
A: Yes — it exhibits good compatibility with acrylics, polyurethanes, alkyds, and melamine-formaldehyde resins, enabling seamless integration into hybrid solvent-based and high-solids formulations without phase separation.
Q3: How should SILRES BS 320 be incorporated into a formulation?
A: It is typically added during the let-down stage under moderate agitation. Pre-dilution in a suitable solvent (e.g., xylene, butyl acetate or isopropanol) is recommended to ensure uniform dispersion before blending with the base resin.
Q4: Does SILRES BS 320 require heat curing to develop its full performance benefits?
A: While ambient-cure functionality is present, optimal crosslink density and durability enhancements are achieved through thermal treatment — typically above 100 °C for several minutes, depending on film thickness and substrate.
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