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

Dow SILASTIC Liquid Silicone Rubber 9390-50 Silicone Rubber

Dow SILASTIC Liquid Silicone Rubber 9390-50 is a platinum-cured, two-part LSR offering excellent flow, low viscosity, and rapid cure—ideal for precision molding of medical devices, infant care items, and consumer electronics seals. It delivers high biocompatibility, thermal stability, and consistent mechanical performance across demanding applications.
  • dow silastic liquid silicone rubber 9390 50 silicone rubber_5105af00
  • dow silastic liquid silicone rubber 9390 50 silicone rubber_5105af00

Features Of Dow SILASTIC Liquid Silicone Rubber 9390-50 Silicone Rubber

  1. Platinum-catalyzed addition-cure system for excellent process control and low compression set.

  2. High biocompatibility, compliant with USP Class VI and ISO 10993-5/-10 testing standards.

  3. Excellent thermal stability across -60 °C to 200 °C continuous service range.

  4. Low viscosity A/B components enable precise metering, efficient mixing, and superior flow into complex molds.

  5. Good electrical insulation properties and UV resistance for long-term outdoor performance.

Typical Applications Of Dow SILASTIC Liquid Silicone Rubber 9390-50 Silicone Rubber

  1. Medical devices including catheters, tubing, seals, and wearable sensor housings.

  2. Automotive fluid handling components such as coolant hoses, turbocharger gaskets, and EV battery module seals.

  3. Consumer electronics enclosures, wearable device bands, and waterproof interface seals.

  4. Industrial food-grade gaskets, pump diaphragms, and sanitary process equipment parts.

  5. Optical bonding and LED encapsulation requiring high clarity and thermal reliability.

Specifications Of Dow SILASTIC Liquid Silicone Rubber 9390-50 Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-part (A + B), pumpable liquids
AppearancePart A: Translucent viscous liquid; Part B: Translucent viscous liquid with catalyst
Primary ApplicationsMedical, automotive, consumer electronics, industrial sealing
Key FeaturesBiocompatible, thermally stable, low viscosity, addition-cure
BenefitsConsistent cure profile, minimal extractables, excellent mechanical recovery
Curing SystemPt-catalyzed hydrosilylation (addition reaction)
Shelf Life (unopened, 25 °C)12 months from date of manufacture


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