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

Dow XIAMETER RBB-2880-50 Silicone Rubber

Dow XIAMETER RBB-2880-50 is a high-consistency silicone rubber (HCR) offering excellent mechanical strength thermal stability and electrical insulation. Designed for compression or transfer molding it delivers consistent cure performance low compression set and superior processability in demanding industrial applications.
  • dow xiameter rbb 2880 50 silicone rubber_6c302a93
  • dow xiameter rbb 2880 50 silicone rubber_6c302a93

Features Of Dow XIAMETER RBB-2880-50 Silicone Rubber

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

  2. Outstanding thermal stability across a wide operating temperature range (–60 °C to 200 °C continuous).

  3. Low compression set and superior resilience for long-term sealing and dynamic gasket performance.

  4. Excellent electrical insulation properties and UL 94 HB flammability rating.

  5. Good resistance to ozone, UV radiation, and weathering—ideal for outdoor and demanding environmental exposure.

Typical Applications Of Dow XIAMETER RBB-2880-50 Silicone Rubber

  1. Automotive under-hood seals, gaskets, and vibration-damping components.

  2. Industrial fluid-handling systems including pump diaphragms and valve seats.

  3. Electrical and electronic enclosures requiring thermal management and environmental protection.

  4. Appliance door seals and thermal interface pads for HVAC and white goods.

  5. Medical device housings and non-implantable elastomeric components compliant with ISO 10993-5 cytotoxicity screening.

Specifications Of Dow XIAMETER RBB-2880-50 Silicone Rubber

Chemical TypePlatinum-cured high-consistency silicone rubber (HCR)
Product FormTwo-part compound (Part A + Part B), supplied as dough-like slabs
AppearanceOpaque off-white to light tan, uniform consistency
Hardness (Shore A, ASTM D2240)50 ± 3
Tensile Strength (ASTM D412)≥ 7.0 MPa
Elongation at Break (ASTM D412)≥ 350 %
Compression Set (22 h @ 175 °C, ASTM D395 Method B)≤ 30 %
Cure SystemPt-catalyzed addition cure (inhibition-free, low-volatility)


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