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

Dow XIAMETER RBB-6671-70 Silicone Rubber

Dow XIAMETER RBB-6671-70 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER portfolio offering excellent mechanical strength thermal stability and compression set resistance ideal for automotive medical and industrial molding applications. It features fast cure kinetics good processability and UL 94 V-0 flammability rating ensuring reliability in demanding environments.
  • dow xiameter rbb 6671 70 silicone rubber_5c3ee84f
  • dow xiameter rbb 6671 70 silicone rubber_5c3ee84f

Features Of Dow XIAMETER RBB-6671-70 Silicone Rubber

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

  2. Outstanding thermal stability and long-term performance across a wide temperature range (–60 °C to 200 °C).

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

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

  5. Good adhesion to various substrates including metals and engineered plastics without primer.

Typical Applications Of Dow XIAMETER RBB-6671-70 Silicone Rubber

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

  2. Industrial fluid-handling components requiring chemical resistance and dimensional stability.

  3. Electrical enclosures and insulating bushings for power distribution equipment.

  4. Appliance door seals and thermal interface components in HVAC systems.

  5. Medical device housings and non-implantable elastomeric parts compliant with ISO 10993-5.

Specifications Of Dow XIAMETER RBB-6671-70 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid system (Part A: base; Part B: catalyst)
AppearanceOpaque, viscous paste (Part A); translucent, low-viscosity liquid (Part B)
Primary ApplicationsCompression-molded seals, gaskets, and technical elastomers
Key FeaturesHigh consistency, low shrinkage, excellent tear strength
BenefitsReduced cycle time, minimal post-cure requirement, consistent part-to-part reproducibility
Curing SystemRoom-temperature mixing followed by elevated-temperature vulcanization (typically 120–170 °C)
Storage Stability12 months at ≤25 °C (unopened, original packaging)


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