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

Wacker SILRES BS 4004 Silicone Resin

Wacker SILRES BS 4004 is a solvent-based methyl-phenyl silicone resin offering excellent hardness thermal stability and weather resistance. Designed for high-performance coatings sealants and electrical insulation it delivers superior adhesion flexibility and hydrophobicity. This premium-grade silicone resin enables durable protective films with low surface energy and outstanding UV resistance ideal for demanding industrial applications.
  • wacker silres bs 4004 silicone resin_33d5b2a6
  • wacker silres bs 4004 silicone resin_33d5b2a6

Features Of Wacker SILRES BS 4004 Silicone Resin

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

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

  3. Good compatibility with organic resins including acrylics, alkyds, and polyesters.

  4. Low surface energy enabling superior water repellency and anti-graffiti properties.

  5. Solvent-based formulation (xylene/toluene blend) for easy integration into conventional coating systems.

Typical Applications Of Wacker SILRES BS 4004 Silicone Resin

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

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

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

  4. Hybrid silicone-acrylic exterior paints requiring enhanced durability and chalk resistance.

  5. Anti-fouling and easy-clean coatings for infrastructure and transportation assets.

Specifications Of Wacker SILRES BS 4004 Silicone Resin

Chemical TypeMethyl-phenyl silicone resin
Product FormLiquid, solvent-based solution
AppearanceClear, colorless to pale yellow liquid
Solvent ContentApprox. 60–65 wt% (xylene/toluene mixture)
Non-Volatile Content35–40 wt%
Viscosity (25 °C, DIN 53211)15–25 mPa·s
Density (20 °C)0.89–0.92 g/cm³
Flash Point (PMCC)Approx. 25 °C


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