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

Dow XIAMETER RBB-2340-70 Silicone Rubber

Dow XIAMETER® RBB-2340-70 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER® portfolio, offering excellent mechanical strength, thermal stability, and compression set resistance. Designed for injection molding and extrusion, it cures rapidly with platinum catalysts and delivers consistent performance across automotive, medical, and industrial applications.
  • dow xiameter rbb 2340 70 silicone rubber_49469113
  • dow xiameter rbb 2340 70 silicone rubber_49469113

Features Of Dow XIAMETER RBB-2340-70 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 a wide temperature range (–60 °C to +200 °C).

  3. Low compression set and superior mechanical resilience after prolonged heat aging.

  4. Meets ISO 10993-5 cytotoxicity requirements for medical device component manufacturing.

  5. Consistent batch-to-batch reproducibility and optimized rheology for high-precision part replication.

Typical Applications Of Dow XIAMETER RBB-2340-70 Silicone Rubber

  1. Medical-grade seals and gaskets for diagnostic equipment and drug delivery devices.

  2. Pharmaceutical container closures requiring extractables/leachables compliance.

  3. Automotive under-hood components exposed to thermal cycling and vibration.

  4. Consumer appliance seals requiring food-contact safety (FDA-compliant formulation).

  5. Industrial fluid-handling components where chemical resistance to polar solvents is critical.

Specifications Of Dow XIAMETER RBB-2340-70 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part kit (Part A: base polymer; Part B: curing agent)
AppearancePart A: translucent off-white paste; Part B: translucent light-yellow paste
Primary ApplicationsMedical devices, pharmaceutical packaging, automotive sealing, food-contact appliances
Key FeaturesLow compression set, high tear strength, excellent dielectric properties
BenefitsReduced post-mold trimming, extended service life in dynamic sealing applications
Curing SystemRoom-temperature cure possible; accelerated at elevated temperatures (e.g., 150 °C for 10 min)
Regulatory ComplianceUSP Class VI, ISO 10993-5, FDA 21 CFR 177.2600 compliant


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