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

Dow XIAMETER RBB-2081-40 Silicone Rubber

Dow XIAMETER® RBB-2081-40 is a high-consistency silicone rubber (HCR) offering excellent processability, thermal stability, and mechanical strength. Designed for injection molding and compression molding, it delivers consistent cure behavior, low compression set, and superior electrical insulation. Ideal for automotive, medical, and industrial sealing applications requiring reliability under extreme temperatures and environmental stress.
  • dow xiameter rbb 2081 40 silicone rubber_e902ec47
  • dow xiameter rbb 2081 40 silicone rubber_e902ec47

Features Of Dow XIAMETER RBB-2081-40 Silicone Rubber

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

  2. Offers outstanding thermal stability and long-term performance across -55 °C to +200 °C operating range.

  3. Low compression set and superior mechanical resilience for demanding sealing and gasketing applications.

  4. Meets UL 94 HB flammability requirements and complies with FDA 21 CFR 177.2600 for food-contact applications.

  5. Consistent batch-to-batch reproducibility and optimized viscosity balance for reliable mold filling and demolding.

Typical Applications Of Dow XIAMETER RBB-2081-40 Silicone Rubber

  1. Automotive engine gaskets and vibration-damping mounts.

  2. Industrial seals and diaphragms for pneumatic and hydraulic systems.

  3. Food and beverage processing equipment components requiring FDA compliance.

  4. Medical device housings and non-implantable elastomeric parts.

  5. Consumer appliance seals exposed to elevated temperatures and repeated flexing.

Specifications Of Dow XIAMETER RBB-2081-40 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid system (Part A: base; Part B: catalyst)
AppearanceOpaque, off-white to light gray viscous paste
Primary ApplicationsCompression-molded seals, gaskets, and technical elastomers
Key FeaturesLow compression set, high tear strength, excellent thermal aging resistance
BenefitsReduced part rejection, extended service life, simplified processing vs. peroxide-cure systems
Curing SystemAddition cure (hydrosilylation)
Regulatory ComplianceFDA 21 CFR 177.2600, UL 94 HB, RoHS compliant


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