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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.
Hydrolytically stable siloxane backbone ensuring consistent performance in humid or wet conditions.
High-performance architectural coatings for façades and concrete protection.
Heat-resistant coatings for industrial equipment and exhaust systems.
Water-repellent impregnation treatments for natural stone and mineral building materials.
Binders in silicone-modified mortars and renders.
Functional additives in fire-retardant and intumescent coating systems.
| Chemical Type | Methyl-phenyl silicone resin |
| Product Form | Liquid solution (typically in aromatic hydrocarbons or xylene) |
| Appearance | Clear, colorless to pale yellow liquid |
| Solids Content | 50–60 wt% (as supplied) |
| Viscosity (25 °C) | 100–300 mPa·s |
| Density (20 °C) | 0.92–0.96 g/cm³ |
| Flash Point | Approx. 45–55 °C (closed cup) |
| Primary Applications | Coatings, construction chemicals, high-temperature protective systems |
Q1: What is the primary function of SILRES KX in coating formulations?
A: SILRES KX acts as a reactive silicone resin modifier that enhances weather resistance, improves substrate wetting, and contributes to long-term durability—particularly in high-performance architectural and industrial coatings where hydrophobicity and UV stability are critical.
Q2: Is SILRES KX compatible with water-based systems?
A: Yes, SILRES KX is specifically designed for use in aqueous dispersions and emulsion-based systems. It can be incorporated directly or via pre-emulsification, and demonstrates good compatibility with common acrylic, styrene-acrylic, and vinyl acetate copolymer binders.
Q3: How does SILRES KX differ from standard silicone oils or fluid polymers?
A: Unlike non-reactive silicone fluids, SILRES KX contains reactive silanol (Si–OH) groups that enable covalent integration into the binder matrix during film formation—reducing migration and improving permanence of silicone-derived benefits such as water repellency and surface slip.
Q4: What is the typical dosage range for optimal performance?
A: Dosage depends on formulation requirements and desired effect intensity, but SILRES KX is typically used at low concentrations—generally ranging from 0.1% to 2% by weight relative to total solids—to achieve balanced hydrophobicity without compromising film integrity or gloss.
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