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

Dow XIAMETER RBB-2345-50 Silicone Rubber

Dow XIAMETER® RBB-2345-50 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER® portfolio, offering excellent mechanical strength, thermal stability up to 200°C, and easy processability via compression or injection molding. Ideal for automotive seals, medical devices, and industrial gaskets requiring FDA-compliant, platinum-cured performance.
  • dow xiameter rbb 2345 50 silicone rubber_f1400365
  • dow xiameter rbb 2345 50 silicone rubber_f1400365

Features Of Dow XIAMETER RBB-2345-50 Silicone Rubber

  1. High-temperature stability up to 200 °C for extended service life in demanding thermal environments.

  2. Excellent compression set resistance, maintaining sealing integrity after prolonged deformation.

  3. Low viscosity before cure enables easy dispensing, metering, and mold filling for precision parts.

  4. Platinum-catalyzed addition-cure chemistry ensures low shrinkage, minimal by-products, and consistent crosslink density.

  5. UL 94 HB flammability rating supports use in regulated electronic and appliance applications.

Typical Applications Of Dow XIAMETER RBB-2345-50 Silicone Rubber

  1. Automotive gaskets and seals for under-hood components exposed to heat and vibration.

  2. Consumer appliance seals for cooktops, ovens, and dishwasher door systems.

  3. Electrical insulation and potting compounds for power modules and LED drivers.

  4. Medical device encapsulation requiring biocompatibility-supporting formulation (ISO 10993 tested).

  5. Industrial fluid-handling components including diaphragms and pump housings.

Specifications Of Dow XIAMETER RBB-2345-50 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-part (Part A + Part B), ready-to-mix liquid
AppearanceTranslucent, low-viscosity liquid (Part A); translucent liquid catalyst (Part B)
Mix Ratio (A:B)10:1 by weight
Cure Temperature Range100–180 °C (heat-cure); room-temperature cure possible with extended time
Shore A Hardness (Cured)50 ± 3
Tensile Strength (Cured)6.5 MPa typical
Elongation at Break (Cured)350% typical


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