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

Dow SILASTIC DY 32-520 U Silicone Rubber

Dow SILASTIC DY 32-520 U is a high-consistency, platinum-cured silicone rubber from Dow’s SILASTIC® portfolio. It offers excellent mechanical strength, thermal stability up to 200°C, and outstanding compression set resistance. Ideal for demanding automotive, medical, and industrial sealing applications requiring FDA-compliant, low-extractable elastomers with precise dimensional control and rapid vulcanization.
  • dow silastic dy 32 520 u silicone rubber_3af47905
  • dow silastic dy 32 520 u silicone rubber_3af47905

Features Of Dow SILASTIC DY 32-520 U 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 superior resilience for demanding sealing and dynamic gasket applications.

  4. Meets ISO 10993-5 and USP Class VI biocompatibility requirements for medical device components.

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

Typical Applications Of Dow SILASTIC DY 32-520 U Silicone Rubber

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

  2. Seals, gaskets, and diaphragms in pharmaceutical processing equipment.

  3. Encapsulants and protective housings for implantable and wearable medical electronics.

  4. Custom molded parts for dental appliances and surgical instruments.

  5. High-reliability seals in aerospace and automotive sensor assemblies.

Specifications Of Dow SILASTIC DY 32-520 U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid system (Part A: base; Part B: catalyst)
AppearancePart A: translucent off-white viscous liquid; Part B: translucent light yellow liquid
Shore A Hardness (Cured, 7 days @ 23 °C)50 ± 3
Tensile Strength (ASTM D412)8.5 MPa (min)
Elongation at Break (ASTM D412)450% (min)
Compression Set (ASTM D395, Method B, 22 h @ 175 °C)≤ 25%
Primary ApplicationsMedical device components, pharmaceutical seals, biocompatible molded parts


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