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

Dow XIAMETER RBC-7300-50 Silicone Rubber

Dow XIAMETER RBC-7300-50 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER portfolio, offering excellent mechanical strength, thermal stability, and compression set resistance. It features fast cure kinetics, low volatility, and consistent batch-to-batch performance—ideal for extrusion, injection molding, and calendering in automotive, medical, and industrial applications.
  • dow xiameter rbc 7300 50 silicone rubber_83aafe9d
  • dow xiameter rbc 7300 50 silicone rubber_83aafe9d

Features Of Dow XIAMETER RBC-7300-50 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 service 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 V-0 flammability rating.

  5. Good adhesion to various substrates including metals and engineering plastics without primers.

Typical Applications Of Dow XIAMETER RBC-7300-50 Silicone Rubber

  1. Automotive under-hood seals and gaskets requiring resistance to oils, coolants, and thermal cycling.

  2. Industrial fluid-handling components such as diaphragms, valves, and pump housings.

  3. Electrical and electronic encapsulation and potting for high-reliability power modules and connectors.

  4. Medical device components compliant with ISO 10993 biocompatibility requirements (when fully cured).

  5. Consumer appliance seals for cooktops, ovens, and HVAC systems demanding durability and food-contact safety.

Specifications Of Dow XIAMETER RBC-7300-50 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-part (Part A + Part B), high-consistency gum
AppearanceOpaque, off-white to light beige compound
Primary ApplicationsSeals, gaskets, diaphragms, and molded elastomeric parts
Key FeaturesLow compression set, thermal stability, electrical insulation, primerless adhesion
BenefitsExtended service life, reduced maintenance, simplified assembly, regulatory compliance readiness
Curing SystemHeat-cured (150 °C for 5–10 minutes typical)
Shelf Life12 months at ≤25 °C in unopened containers


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