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

Dow DOWSIL HV-1860 120 r Silicone Rubber

Dow DOWSIL HV-1860 120 R is a high-consistency silicone rubber from Dow’s DOWSIL™ portfolio, offering excellent mechanical strength, thermal stability up to 200°C, and outstanding compression set resistance. It cures rapidly via platinum-catalyzed addition reaction, ensuring consistent reproducibility and low volatile content—ideal for demanding automotive, medical, and industrial molding applications.
  • dow dowsil hv 1860 120 r silicone rubber_9305bb2e
  • dow dowsil hv 1860 120 r silicone rubber_9305bb2e

Features Of Dow DOWSIL HV-1860 120 r Silicone Rubber

  1. High-consistency, heat-curable silicone rubber with excellent mechanical strength and tear resistance.

  2. Outstanding thermal stability across a wide operating temperature range from –60 °C to +200 °C.

  3. Low compression set for long-term sealing performance in dynamic and static applications.

  4. Excellent electrical insulation properties and UL 94 V-0 flame retardancy (when compounded with appropriate fillers).

  5. Good processability via compression, transfer, or injection molding — optimized for high-volume production.

Typical Applications Of Dow DOWSIL HV-1860 120 r Silicone Rubber

  1. Automotive engine and transmission gaskets requiring high-temperature resilience.

  2. Industrial fluid-handling seals exposed to oils, coolants, and brake fluids.

  3. Electrical insulators and encapsulants for power electronics and EV battery modules.

  4. Food-contact compliant seals (per FDA 21 CFR §177.2310, when properly cured) for processing equipment.

  5. Aerospace O-rings and vibration-damping components meeting AMS3320 requirements.

Specifications Of Dow DOWSIL HV-1860 120 r Silicone Rubber

Chemical TypeHigh-consistency vinyl-addition cured silicone rubber
Product FormUncured compound in sheet or pre-cut blanks
AppearanceOpaque, uniform elastomeric sheet; color typically translucent white or custom pigmented
Primary ApplicationsSeals, gaskets, diaphragms, and molded parts for demanding industrial environments
Key FeaturesHeat-curable, platinum-catalyzed, low-volatility, non-staining
BenefitsConsistent cure profile, minimal post-cure shrinkage, excellent dimensional stability
Curing SystemVinyl–hydrosilylation (requires heat activation; typical cure: 175 °C × 5–10 min)
Regulatory ComplianceMeets ISO 10993-5 (cytotoxicity); RoHS and REACH compliant


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