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

Dow SILASTIC RTV-3497 Silicone Rubber

Dow SILASTIC RTV-3497 is a high-performance platinum-cured liquid silicone rubber from Dow’s SILASTIC RTV series, offering excellent thermal stability, low compression set, and biocompatibility—ideal for medical device encapsulation, sealing, and precision molding applications.
  • dow silastic rtv 3497 silicone rubber_e380196f
  • dow silastic rtv 3497 silicone rubber_e380196f

Features Of Dow SILASTIC RTV-3497 Silicone Rubber

  1. Two-component, addition-cure silicone rubber offering excellent thermal stability and long-term reliability.

  2. Low viscosity before cure enables easy mixing, degassing, and flow into intricate molds or assemblies.

  3. Fast room-temperature or elevated-temperature cure profile supports high-throughput manufacturing.

  4. Exceptional electrical insulation properties with stable dielectric strength across wide temperature and humidity ranges.

  5. Low compression set and high elasticity ensure consistent sealing performance under repeated mechanical stress.

Typical Applications Of Dow SILASTIC RTV-3497 Silicone Rubber

  1. Encapsulation and potting of power electronics, including IGBT modules and EV inverter components.

  2. Sealing and gasketing for automotive sensors, battery management systems (BMS), and under-hood electronics.

  3. Thermal interface materials (TIM) in LED lighting assemblies requiring long-life thermal management.

  4. Protective coatings for aerospace avionics and flight-critical control units exposed to extreme environments.

  5. Molded insulators and bushings in renewable energy inverters and solar junction boxes.

Specifications Of Dow SILASTIC RTV-3497 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid (Part A: base; Part B: catalyst)
Appearance (Uncured)Clear to translucent viscous liquids
Base-to-Catalyst Mix Ratio (by weight)10:1
Cure Schedule (Typical)24 h at 25°C or 2 h at 100°C
Hardness (Shore A, ASTM D2240)40–45
Density (g/cm³, ASTM D1475)1.12–1.16
Key FeaturesLow shrinkage, no by-products, excellent adhesion to metals and primed plastics


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