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

Dow DOWSIL 93-500 Silicone Rubber

Dow DOWSIL 93-500 Silicone Rubber is a two-part, addition-cure liquid silicone elastomer offering excellent thermal stability, low compression set, and outstanding electrical insulation. It cures rapidly at room or elevated temperatures with precise 1:1 mix ratio, delivering high tear strength and flexibility for demanding sealing, potting, and encapsulation applications across automotive, electronics, and industrial sectors.
  • dow dowsil 93 500 silicone rubber_267a12da
  • dow dowsil 93 500 silicone rubber_267a12da

Features Of Dow DOWSIL 93-500 Silicone Rubber

  1. High-performance, two-part addition-cure silicone rubber with excellent thermal stability.

  2. Low compression set and outstanding resilience over extended service life.

  3. Excellent electrical insulation properties across wide temperature and frequency ranges.

  4. Good adhesion to various substrates including metals, plastics, and glass without primer.

  5. UL 94 V-0 rated for flame retardancy when properly formulated and cured.

Typical Applications Of Dow DOWSIL 93-500 Silicone Rubber

  1. Encapsulation and potting of electronic components and power modules.

  2. Sealing and gasketing in automotive powertrain and EV battery systems.

  3. Thermal interface materials (TIMs) for heat dissipation in LED lighting assemblies.

  4. Insulating coatings for high-voltage sensors and renewable energy inverters.

  5. Flexible bonding and vibration-damping solutions in industrial control housings.

Specifications Of Dow DOWSIL 93-500 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-component liquid system (Part A + Part B)
AppearancePart A: Translucent viscous liquid; Part B: Translucent viscous liquid
Primary ApplicationsEncapsulation, potting, sealing, and thermal management
Key FeaturesLow shrinkage, low exotherm, excellent flowability before cure
BenefitsReduced stress on sensitive electronics, consistent long-term performance
Cure MechanismAddition reaction (hydrosilylation), no by-products
Operating Temperature Range−55 °C to +180 °C (short-term peak up to 200 °C)


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