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

Dow DOWSIL RSN-0431 HS Silicone Resin

Dow DOWSIL RSN-0431 HS is a high-solids, solvent-based silicone resin offering exceptional thermal stability, weather resistance, and adhesion to diverse substrates. Designed for protective coatings and high-performance industrial applications, it enables durable film formation with low VOC and excellent gloss retention. Part of Dow’s advanced DOWSIL Resin portfolio, it delivers reliable performance in demanding environments.
  • dow dowsil rsn 0431 hs silicone resin_f879249e
  • dow dowsil rsn 0431 hs silicone resin_f879249e

Features Of Dow DOWSIL RSN-0431 HS Silicone Resin

  1. High-solids, solvent-based silicone resin offering excellent thermal stability up to 250 °C continuous use.

  2. Provides superior electrical insulation properties with low dielectric loss and high volume resistivity.

  3. Forms durable, flexible, and crack-resistant films upon solvent evaporation and thermal cure.

  4. Compatible with common organic resins (e.g., epoxy, polyester) for hybrid formulation flexibility.

  5. Low volatility and minimal outgassing after curing — suitable for demanding electronic and aerospace applications.

Typical Applications Of Dow DOWSIL RSN-0431 HS Silicone Resin

  1. Insulating varnishes for electric motors, transformers, and generators.

  2. Protective coatings for high-temperature wire enamels and magnet wires.

  3. Binders in high-performance abrasive wheels and refractory composites.

  4. Matrix resins in lightweight thermal barrier and EMI shielding composites.

  5. Surface treatments for glass fiber fabrics used in aerospace and industrial filtration.

Specifications Of Dow DOWSIL RSN-0431 HS Silicone Resin

Chemical TypeMethyl-phenyl silicone resin
Product FormSolvent solution (xylene/toluene blend)
AppearanceClear, colorless to pale yellow liquid
Solids Content55–60 wt% (as received)
Viscosity (25 °C)800–1,200 cP (Brookfield, spindle #3, 20 rpm)
Density (25 °C)0.92–0.95 g/cm³
Flash Point (Tag Closed Cup)38–42 °C
Cure Profile150 °C × 30 min or 200 °C × 10 min (film formation)


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