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

Dow XIAMETER RBL-2004-50 Silicone Rubber

Dow XIAMETER RBL-2004-50 is a high-consistency silicone rubber (HCR) from Dow’s XIAMETER portfolio, offering excellent mechanical strength, thermal stability, and compression set resistance. It cures rapidly via platinum-catalyzed addition reaction, enabling efficient high-volume production of durable elastomeric parts for automotive, medical, and industrial applications.
  • dow xiameter rbl 2004 50 silicone rubber_266ec047
  • dow xiameter rbl 2004 50 silicone rubber_266ec047

Features Of Dow XIAMETER RBL-2004-50 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 high elasticity for reliable sealing and dynamic gasket applications.

  4. Excellent electrical insulation properties and resistance to weathering, ozone, and UV exposure.

  5. Meets UL 94 HB flammability rating and complies with RoHS and REACH regulatory requirements.

Typical Applications Of Dow XIAMETER RBL-2004-50 Silicone Rubber

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

  2. Industrial fluid-handling gaskets and diaphragms for pumps and valves.

  3. Electrical and electronic enclosures requiring environmental sealing and dielectric integrity.

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

  5. Appliance door seals and thermal management pads in white goods.

Specifications Of Dow XIAMETER RBL-2004-50 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid system (Part A: base polymer; Part B: curing agent)
AppearanceOpaque, off-white to light gray viscous paste (Part A); translucent amber liquid (Part B)
Shore A Hardness (ASTM D2240, 7 days @ 23 °C)50 ± 3
Tensile Strength (ASTM D412)≥ 6.0 MPa
Elongation at Break (ASTM D412)≥ 350 %
Compression Set (ASTM D395, Method B, 22 hrs @ 175 °C)≤ 25 %
Primary ApplicationsSealing, gasketing, and molded elastomeric parts requiring durability and consistency


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