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

Dow XIAMETER RBB-2881-80 Silicone Rubber

Dow XIAMETER® RBB-2881-80 is a high-consistency silicone rubber (HCR) offering excellent mechanical strength, thermal stability, and compression set resistance. Designed for injection molding and extrusion, it delivers consistent cure behavior, low volatility, and superior electrical insulation—ideal for automotive, medical, and industrial sealing applications.
  • dow xiameter rbb 2881 80 silicone rubber_a95ce91c
  • dow xiameter rbb 2881 80 silicone rubber_a95ce91c

Features Of Dow XIAMETER RBB-2881-80 Silicone Rubber

  1. High tear strength and excellent elongation for demanding dynamic sealing applications.

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

  3. Low compression set, ensuring long-term sealing performance under continuous load.

  4. Good resistance to ozone, UV radiation, and weathering for extended outdoor service life.

  5. Platinum-catalyzed addition cure system enabling precise, reproducible processing with minimal by-products.

Typical Applications Of Dow XIAMETER RBB-2881-80 Silicone Rubber

  1. Aerospace seals and gaskets requiring FAA-compliant materials.

  2. Automotive under-hood components including sensor housings and turbocharger seals.

  3. Medical device enclosures and fluid-handling components meeting ISO 10993 biocompatibility guidelines.

  4. Industrial power transmission seals exposed to high thermal cycling and mechanical stress.

Specifications Of Dow XIAMETER RBB-2881-80 Silicone Rubber

Chemical TypePlatinum-cured high-consistency silicone rubber (HCR)
Product FormTwo-part compound (Part A + Part B), supplied as dough-like sheets
AppearanceOpaque off-white to light tan, uniform consistency
Primary ApplicationsStatic and dynamic seals, gaskets, diaphragms, and molded elastomeric parts
Key FeaturesHigh tear strength, low compression set, thermal aging resistance
BenefitsReduced part failure in critical environments; enables high-yield, automated molding
Cure SystemAddition cure (hydrosilylation), inhibited at room temperature
Shelf Life12 months at ≤25 °C when stored unopened in original packaging


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