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

Dow SILASTIC NPC 9300-50 Silicone Rubber

Dow SILASTIC NPC 9300-50 is a platinum-cured liquid silicone rubber (LSR) from Dow’s SILASTIC NPC series, offering excellent flow, low viscosity, and high biocompatibility. Ideal for precision medical device molding, it complies with ISO 10993 and USP Class VI standards, ensuring safety and consistency in demanding healthcare applications.
  • dow silastic npc 9300 50 silicone rubber_34df3b4a
  • dow silastic npc 9300 50 silicone rubber_34df3b4a

Features Of Dow SILASTIC NPC 9300-50 Silicone Rubber

  1. High consistency and excellent extrudability for precision profile formation.

  2. Platinum-catalyzed, addition-cure chemistry enabling low compression set and minimal post-cure shrinkage.

  3. UL 94 V-0 rated flame resistance for enhanced safety in regulated environments.

  4. Outstanding thermal stability across –60 °C to +200 °C continuous service range.

  5. Low volatility and minimal extractables—compliant with ISO 10993-5 for biocompatibility screening.

Typical Applications Of Dow SILASTIC NPC 9300-50 Silicone Rubber

  1. Medical tubing and fluid-handling components for diagnostic and therapeutic devices.

  2. Sealing profiles for HVAC and cleanroom filtration systems.

  3. Gaskets and encapsulants in automotive electronic control units (ECUs) and sensors.

  4. Insulating jackets for high-reliability wire and cable assemblies.

  5. Food-contact gaskets and seals in processing equipment compliant with FDA 21 CFR §177.2600.

Specifications Of Dow SILASTIC NPC 9300-50 Silicone Rubber

Chemical TypePlatinum-cured, addition-cure silicone rubber
Product FormTwo-part liquid (Part A: base; Part B: catalyst)
AppearanceOpaque off-white viscous liquid (Part A); colorless to pale yellow liquid (Part B)
Shore A Hardness (7 days, 23 °C)50 ± 2
Tensile Strength (ASTM D412)8.5 MPa typical
Elongation at Break (ASTM D412)320% typical
Compression Set (22 hrs @ 175 °C, ASTM D395 Method B)≤15%
Primary ApplicationsExtruded profiles, gaskets, medical tubing, and sealing components


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