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

Dow SILASTIC RTV-3112 Silicone Rubber

Dow SILASTIC RTV-3112 Silicone Rubber is a two-part, addition-cure liquid silicone rubber offering excellent flow, low viscosity, and rapid room-temperature vulcanization. Ideal for precision molding of medical devices and electronics, it delivers high tear strength, biocompatibility per ISO 10993, and thermal stability from −65°C to 200°C.
  • dow silastic rtv 3112 silicone rubber_77e2e94d
  • dow silastic rtv 3112 silicone rubber_77e2e94d

Features Of Dow SILASTIC RTV-3112 Silicone Rubber

  1. Two-part, addition-cure liquid silicone rubber with excellent flow and self-leveling properties.

  2. Low viscosity formulation enables easy dispensing and precise molding of intricate geometries.

  3. Fast room-temperature cure with optional heat acceleration for improved throughput.

  4. High thermal stability and consistent performance across -60 °C to 200 °C operating range.

  5. UL 94 HB flammability rating and compliant with ISO 10993-5 for cytotoxicity testing.

Typical Applications Of Dow SILASTIC RTV-3112 Silicone Rubber

  1. Medical device encapsulation and protective coatings for sensors and electronics.

  2. Soft-touch overmolding on plastic and metal substrates in consumer electronics.

  3. Sealing and gasketing in automotive under-hood components exposed to thermal cycling.

  4. Prototyping and low-volume production of flexible molds for polyurethane and epoxy casting.

  5. Insulating potting compounds for LED modules and power electronics requiring thermal management.

Specifications Of Dow SILASTIC RTV-3112 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid (Part A: base; Part B: catalyst)
AppearanceTranslucent, low-viscosity liquid (Part A); colorless to pale yellow liquid (Part B)
Mix Ratio (A:B)10:1 by weight
Shore A Hardness (7 days, 23 °C)35 ± 3
Tensile Strength (ASTM D412)6.0 MPa (typical)
Elongation at Break (ASTM D412)280% (typical)
Primary ApplicationsEncapsulation, potting, sealing, soft-touch overmolding, mold making


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