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

Wacker SILRES 603 Silicone Resin

Wacker SILRES 603 is a solvent-based methyl-phenyl silicone resin offering excellent thermal stability, weather resistance and electrical insulation. Designed for high-performance coatings, impregnation and binder applications, it cures to form hard, glossy, durable films with low surface energy and superior hydrophobicity. Widely used in industrial protective coatings and heat-resistant finishes across automotive and electronics sectors.
  • wacker silres 603 silicone resin_b1293d99
  • wacker silres 603 silicone resin_b1293d99

Features Of Wacker SILRES 603 Silicone Resin

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

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

  3. Good compatibility with organic resins, enabling hybrid formulation flexibility.

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

  5. Self-crosslinking capability under heat or ambient moisture, reducing need for external catalysts.

Typical Applications Of Wacker SILRES 603 Silicone Resin

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

  2. Water-repellent impregnations for natural stone, brick, and mortar substrates.

  3. Binders in mineral-based renders and plasters requiring enhanced durability.

  4. Hybrid systems combining silicone and acrylic or polyester resins for industrial finishes.

  5. Additive in fire-retardant coatings to improve char integrity and thermal insulation.

Specifications Of Wacker SILRES 603 Silicone Resin

Chemical TypeMethyl/phenyl silicone resin
Product FormLiquid (solvent-based)
AppearanceClear, colorless to pale yellow liquid
SolventXylene / aromatic hydrocarbon mixture
Non-Volatile ContentApprox. 60 wt.%
Density (20 °C)Approx. 0.92 g/cm³
Viscosity (25 °C)Approx. 15–25 mPa·s
Primary ApplicationsProtective coatings, mineral binder modification, water repellents


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