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

Dow DOWSIL MS-1002 Moldable Silicone A&B

Dow DOWSIL MS-1002 Moldable Silicone A&B is a two-part addition-cure silicone elastomer offering excellent flow, low shrinkage, and high thermal stability. Ideal for precision molding of gaskets, seals, and prototypes. Features fast room-temperature cure, outstanding adhesion to metals/plastics, and UL 94 V-0 flammability rating. Part of Dow’s trusted DOWSIL™ silicone portfolio.
  • dow dowsil ms 1002 moldable silicone a b_4e8c5e31
  • dow dowsil ms 1002 moldable silicone a b_4e8c5e31

Features Of Dow DOWSIL MS-1002 Moldable Silicone A&B

  1. Two-part, room-temperature vulcanizing (RTV) silicone system with excellent moldability and low-viscosity flow before cure.

  2. Offers outstanding flexibility, elongation, and tear resistance after full cure — ideal for dynamic sealing and cushioning applications.

  3. Provides excellent adhesion to a wide range of substrates including metals, plastics, glass, and painted surfaces without primer.

  4. Resistant to moisture, ozone, UV radiation, and extreme temperatures from –55 °C to +200 °C long-term.

  5. Low compression set and high resilience ensure consistent performance in gasketing and vibration-damping components.

Typical Applications Of Dow DOWSIL MS-1002 Moldable Silicone A&B

  1. Custom-molded gaskets and seals for automotive powertrain, lighting, and EV battery enclosures.

  2. Vibration-damping pads and isolators in industrial electronics and precision instrumentation.

  3. Sealing and potting of sensors, connectors, and control modules exposed to harsh environmental conditions.

  4. Prototyping and low-volume production of soft-touch elastomeric parts in medical device housings and wearable interfaces.

  5. Repair and refurbishment of silicone-based thermal interface materials and encapsulants in aerospace and defense systems.

Specifications Of Dow DOWSIL MS-1002 Moldable Silicone A&B

Chemical TypeTwo-part addition-cure silicone elastomer
Product FormPart A: viscous liquid; Part B: low-viscosity liquid catalyst
AppearancePart A: translucent light amber; Part B: colorless to pale yellow
Mix Ratio by Weight10:1 (A:B)
Cure MechanismRoom-temperature addition cure (platinum-catalyzed)
Shore A Hardness (7 days @ 23°C / 50% RH)30–35
Elongation at Break (ASTM D412)≥ 450%
Primary ApplicationsMoldable gaskets, dynamic seals, vibration dampers, prototyping elastomers


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