Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker SILRES BS 45 Silicone Resin

Wacker SILRES BS 45 is a solvent-based methyl-phenyl silicone resin from Wacker’s SILRES BS series, offering excellent heat resistance, weatherability and electrical insulation. It cures to form hard, glossy, durable films ideal for high-performance coatings, impregnation resins and binder applications in demanding industrial environments.
  • wacker silres bs 45 silicone resin_bb4cbca1
  • wacker silres bs 45 silicone resin_bb4cbca1

Features Of Wacker SILRES BS 45 Silicone Resin

  1. High thermal stability up to 250 °C continuous service temperature.

  2. Excellent weather resistance and UV stability for long-term outdoor performance.

  3. Good compatibility with organic resins (e.g., acrylics, alkyds) enabling hybrid formulations.

  4. Low surface energy providing inherent water repellency and anti-graffiti properties.

  5. Solvent-based liquid form ensuring easy handling and integration into conventional coating systems.

Typical Applications Of Wacker SILRES BS 45 Silicone Resin

  1. High-performance architectural coatings for façades and concrete protection.

  2. Heat-resistant topcoats for industrial equipment and exhaust components.

  3. Water-repellent impregnation treatments for natural stone and masonry.

  4. Functional additives in silicone-modified paints and varnishes.

  5. Base resin in durable anti-corrosion primers for metal substrates.

Specifications Of Wacker SILRES BS 45 Silicone Resin

Chemical TypeMethyl/phenyl silicone resin
Product FormLiquid, solvent-based (xylene/butyl acetate blend)
AppearanceClear to slightly hazy, colorless to pale yellow liquid
Solids ContentApprox. 45 wt.%
Viscosity (25 °C, DIN 53019)80–120 mPa·s
Density (20 °C)0.92–0.96 g/cm³
VOC Content≈ 550 g/L (EU Paints Directive compliant)
Primary ApplicationsCoating additives, protective topcoats, hydrophobic impregnations


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