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

Dow XIAMETER RBB-2390-30 Silicone Rubber

Dow XIAMETER RBB-2390-30 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, medical, and industrial sealing applications requiring reliable performance and regulatory compliance.
  • dow xiameter rbb 2390 30 silicone rubber_577a2237
  • dow xiameter rbb 2390 30 silicone rubber_577a2237

Features Of Dow XIAMETER RBB-2390-30 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. Good processability with low viscosity for efficient mixing, extrusion, and injection molding.

  4. UL 94 HB flame retardancy compliant for applications requiring basic fire safety performance.

  5. Consistent batch-to-batch reproducibility supported by Dow’s rigorous quality control standards.

Typical Applications Of Dow XIAMETER RBB-2390-30 Silicone Rubber

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

  2. Industrial hose linings requiring flexibility, chemical resistance, and pressure retention.

  3. Electrical insulation components in power distribution and lighting systems.

  4. Food-grade sealing profiles for processing equipment meeting FDA-compliant formulations.

  5. Consumer appliance seals where durability, low extractables, and aging resistance are critical.

Specifications Of Dow XIAMETER RBB-2390-30 Silicone Rubber

Chemical TypePlatinum-cured high-consistency silicone rubber (HCR)
Product FormUncured, two-part compound (Part A + Part B)
AppearancePearlescent white, homogeneous gum stock
Shore A Hardness (ASTM D2240)30 ± 2
Tensile Strength (ASTM D412)≥5.0 MPa
Elongation at Break (ASTM D412)≥450 %
Density (ASTM D792)1.12–1.16 g/cm³
Curing SystemPt-catalyzed addition cure (inhibitor-controlled)


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