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High thermal stability with continuous service temperature up to 250 °C.
Excellent weather resistance and UV stability for long-term outdoor performance.
Good compatibility with organic resins, enabling hybrid formulation development.
Low surface energy providing inherent water repellency and anti-soiling properties.
Solvent-based liquid format ensuring easy handling and integration into existing coating processes.
High-performance heat-resistant coatings for industrial exhaust systems and engine components.
Weatherproof topcoats for architectural façades and pre-finished metal panels.
Hybrid silicone-acrylic binders for premium exterior wall paints and renders.
Water-repellent impregnation treatments for concrete, natural stone, and masonry substrates.
Functional additives in fire-retardant intumescent coatings and protective primers.
| Chemical Type | Methyl-phenyl silicone resin |
| Product Form | Liquid solution |
| Appearance | Clear, pale yellow to amber liquid |
| Solvent | Xylene / aromatic hydrocarbon blend |
| Non-Volatile Content | Approx. 60 wt.% |
| Viscosity (25 °C) | Approx. 80–120 mPa·s |
| Density (20 °C) | Approx. 0.94–0.97 g/cm³ |
| Flash Point (PMCC) | Approx. 35 °C |
Q1: What is the primary function of SILRES H 62 C in coating and ink formulations?
A: SILRES H 62 C acts as a surface modifier and crosslinking aid, enhancing scratch resistance, mar resistance, and substrate wetting—particularly on low-energy surfaces such as plastics and treated metals. It improves film integrity without significantly affecting gloss or transparency.
Q2: Is SILRES H 62 C compatible with conventional organic resin systems?
A: Yes, it demonstrates good compatibility with acrylics, polyurethanes, alkyds, and melamine-formaldehyde resins. Its hydrolytically stable siloxane backbone allows for incorporation into solvent-based, high-solids, and certain water-reducible systems—though pre-testing under actual formulation conditions is recommended.
Q3: How is SILRES H 62 C typically dosed in industrial coatings?
A: It is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to total non-volatile content—depending on the desired performance balance between surface enhancement and film flexibility. Optimal dosage should be determined through application-specific trials.
Q4: Does SILRES H 62 C require heat curing to achieve full functionality?
A: While ambient crosslinking occurs slowly over time, thermal activation above 100 °C significantly accelerates the condensation reaction and maximizes performance benefits such as hardness development and chemical resistance. Cure profiles should be optimized based on substrate sensitivity and production constraints.
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