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

Dow XIAMETER RBB-2101-20 Silicone Rubber

Dow XIAMETER RBB-2101-20 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER® portfolio, designed for injection molding and compression molding. It offers excellent mechanical strength, thermal stability up to 200°C, low compression set, and good processability. Ideal for automotive seals, medical devices, and industrial gaskets requiring FDA-compliant, platinum-cured performance.
  • dow xiameter rbb 2101 20 silicone rubber_22003d5f
  • dow xiameter rbb 2101 20 silicone rubber_22003d5f

Features Of Dow XIAMETER RBB-2101-20 Silicone Rubber

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

  2. Excellent electrical insulation properties with low dielectric loss and high volume resistivity.

  3. Good compression set resistance, maintaining sealing integrity after prolonged deformation.

  4. Easy to process via compression or transfer molding with consistent flow and minimal post-cure requirements.

  5. Compliant with UL 94 V-0 flammability rating for enhanced safety in electronic and automotive applications.

Typical Applications Of Dow XIAMETER RBB-2101-20 Silicone Rubber

  1. Automotive under-hood gaskets and seals exposed to heat, oil, and vibration.

  2. Electrical insulators and potting compounds for power electronics and EV battery modules.

  3. Medical device housings requiring biocompatibility support (ISO 10993-5/10 tested).

  4. Industrial sensor encapsulation where long-term dimensional stability and moisture resistance are critical.

  5. Aerospace fluid system seals compatible with aviation-grade hydraulic fluids and fuels.

Specifications Of Dow XIAMETER RBB-2101-20 Silicone Rubber

Chemical TypeHigh-consistency silicone rubber (HCR), platinum-cured
Product FormUncured gum stock, supplied in slabs or pre-cut sheets
AppearanceOpaque off-white to light tan, uniform consistency without visible specks
Hardness (Shore A, ASTM D2240)60 ± 3
Tensile Strength (ASTM D412)≥ 7.0 MPa
Elongation at Break (ASTM D412)≥ 350 %
Volume Resistivity (ASTM D257)≥ 1 × 10¹⁴ Ω·cm
Key FeaturesThermal stability, electrical insulation, low compression set, flame retardant


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