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

Dow XIAMETER RBB-2002-70 Silicone Rubber

Dow XIAMETER® RBB-2002-70 is a high-strength, platinum-cured liquid silicone rubber (LSR) offering excellent flow, low viscosity, and rapid cure. Designed for precision molding of medical devices, seals, and automotive parts, it delivers superior biocompatibility, thermal stability, and mechanical resilience. Part of Dow’s trusted XIAMETER® LSR portfolio, this grade ensures consistent processing and reliable performance in high-volume manufacturing.
  • dow xiameter rbb 2002 70 silicone rubber_2cb92de4
  • dow xiameter rbb 2002 70 silicone rubber_2cb92de4

Features Of Dow XIAMETER RBB-2002-70 Silicone Rubber

  1. High-temperature stability for continuous service up to 200 °C.

  2. Excellent compression set resistance, maintaining sealing integrity over time.

  3. Good processability in liquid injection molding (LIM) and extrusion operations.

  4. Low volatility and minimal extractables—ideal for demanding regulatory environments.

  5. Platinum-catalyzed, addition-cure chemistry with precise cure control and no by-products.

Typical Applications Of Dow XIAMETER RBB-2002-70 Silicone Rubber

  1. Automotive fluid handling components, including coolant and brake system seals.

  2. Medical tubing and device housings requiring biocompatibility and sterilization compatibility.

  3. Industrial gaskets and dynamic seals exposed to thermal cycling and mechanical stress.

  4. Consumer appliance seals for cooktops, ovens, and HVAC systems.

  5. Electrical insulation parts in power electronics and EV battery modules.

Specifications Of Dow XIAMETER RBB-2002-70 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTranslucent to slightly hazy viscous liquid
Base Polymer Viscosity (25 °C, Part A)15,000–25,000 cP
Cure Temperature Range100–180 °C
Shore A Hardness (Cured)70 ± 3
Tensile Strength (ASTM D412)8.0–9.5 MPa
Elongation at Break (ASTM D412)350–450 %


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