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

Wacker SILRES BS 290 Silicone Resin

Wacker SILRES BS 290 is a solvent-based methyl-phenyl silicone resin from Wacker’s SILRES BS series, offering excellent thermal stability, weather resistance, and hardness for high-performance coatings, release layers, and heat-resistant formulations. It cures at elevated temperatures to form durable, hydrophobic, oxidation-resistant films with low surface energy and good compatibility with organic resins.
  • wacker silres bs 290 silicone resin_df6edde5
  • wacker silres bs 290 silicone resin_df6edde5

Features Of Wacker SILRES BS 290 Silicone Resin

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

  2. Excellent weathering and UV 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 290 Silicone Resin

  1. High-performance façade coatings for concrete and masonry substrates.

  2. Heat-resistant topcoats for industrial metal structures and chimneys.

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

  4. Anti-graffiti clear coats for architectural and public infrastructure surfaces.

  5. Hybrid silicone-acrylic exterior wall paints requiring enhanced durability.

Specifications Of Wacker SILRES BS 290 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.% at 105 °C, 1 h
Viscosity (25 °C)Approx. 20–30 mPa·s (Brookfield LVT, spindle #1)
Density (20 °C)Approx. 0.87–0.89 g/cm³
Flash Point (PMCC)Approx. 25–30 °C


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