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High thermal stability up to 250 °C for extended service life in demanding environments.
Excellent weather resistance and UV stability, maintaining performance under prolonged outdoor exposure.
Good compatibility with organic resins (e.g., acrylics, alkyds) enabling hybrid formulation development.
Low surface energy providing superior water repellency and anti-graffiti functionality.
Solvent-based liquid format for easy integration into conventional coating and impregnation processes.
Water-repellent impregnation for concrete, natural stone, and masonry substrates.
High-performance topcoats and clear finishes for architectural façades and cladding systems.
Functional additives in protective coatings for industrial steel and infrastructure assets.
Base resin in heat-resistant coatings for exhaust components and industrial equipment.
Formulation component in anti-graffiti and self-cleaning coatings for urban infrastructure.
| Chemical Type | Phenyl-methyl silicone resin |
| Product Form | Liquid, solvent-based solution |
| Appearance | Clear, colorless to pale yellow liquid |
| Solvent | Xylene / aromatic hydrocarbon blend |
| Non-Volatile Content | Approx. 45–48 wt % |
| Density (20 °C) | Approx. 0.92–0.95 g/cm³ |
| Viscosity (25 °C) | Approx. 15–25 mPa·s (Brookfield, spindle #3, 60 rpm) |
| Primary Applications | Protective coatings, impregnation agents, hybrid resin modifiers |
Q1: What is the primary function of SILRES BS 280 in coating and ink formulations?
A: SILRES BS 280 acts as a crosslinking agent and surface modifier, enhancing scratch resistance, mar resistance, and hydrophobicity while maintaining substrate adhesion and film flexibility.
Q2: Is SILRES BS 280 compatible with conventional organic resin systems?
A: Yes — it exhibits good compatibility with acrylics, polyurethanes, alkyds, and melamine-formaldehyde resins, enabling use in hybrid binder systems without significant phase separation or stability issues.
Q3: How is SILRES BS 280 typically incorporated into formulations?
A: It is generally added during the let-down stage under moderate shear, often as a solvent-based solution. Dosage depends on formulation requirements but typically ranges from 0.1% to 2% by weight of total solids.
Q4: Does SILRES BS 280 require thermal curing to achieve full performance?
A: While ambient crosslinking occurs over time, optimal network development and property enhancement are achieved with mild thermal treatment — typically at 80–120 °C for 10–30 minutes, depending on film thickness and substrate.
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