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

Dow XIAMETER RBB-2100-40 Silicone Rubber

Dow XIAMETER RBB-2100-40 Silicone Rubber is a high-consistency, platinum-cured elastomer offering excellent mechanical strength, thermal stability, and low compression set. Designed for precision molding, it delivers consistent flow, rapid cure, and superior release—ideal for medical devices, automotive seals, and industrial gaskets requiring FDA-compliant, biocompatible performance.
  • dow xiameter rbb 2100 40 silicone rubber_8e788c14
  • dow xiameter rbb 2100 40 silicone rubber_8e788c14

Features Of Dow XIAMETER RBB-2100-40 Silicone Rubber

  1. High-consistency, two-part addition-cure silicone rubber with excellent processability in compression and transfer molding.

  2. Outstanding thermal stability and long-term performance across a wide temperature range (–60 °C to +200 °C).

  3. Low compression set and superior elastic recovery for durable sealing and dynamic gasket applications.

  4. Excellent electrical insulation properties and resistance to weathering, ozone, and UV exposure.

  5. Meets ISO 10993-5 cytotoxicity requirements, supporting biocompatibility for select medical device components.

Typical Applications Of Dow XIAMETER RBB-2100-40 Silicone Rubber

  1. Automotive engine and transmission gaskets requiring high-temperature resilience.

  2. Industrial fluid-handling seals and diaphragms exposed to oils, fuels, and coolants.

  3. Medical tubing connectors and housings where consistent mechanical performance and cleanroom compatibility are critical.

  4. Appliance door seals and thermal interface components in HVAC and white goods.

  5. Electrical insulators and protective encapsulants for power electronics and sensors.

Specifications Of Dow XIAMETER RBB-2100-40 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-part liquid system (Part A: base; Part B: catalyst)
AppearancePart A: translucent off-white viscous liquid; Part B: translucent pale yellow liquid
Base PolymerDimethyl-methylvinylsiloxane copolymer
Curing SystemPlatinum-based hydrosilylation
Shore A Hardness (Cured, 7 days @ 23 °C)40 ± 2
Tensile Strength (ASTM D412)≥ 7.0 MPa
Elongation at Break (ASTM D412)≥ 450 %


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