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

Dow SILASTIC RTV-3487 Silicone Rubber

Dow SILASTIC RTV-3487 is a high-performance platinum-cured liquid silicone rubber (LSR) from Dow’s SILASTIC™ portfolio. It offers excellent thermal stability, low compression set, and outstanding flow for precision molding of medical devices, automotive seals, and consumer electronics components. Fast cure, biocompatibility per ISO 10993, and consistent rheology make it ideal for high-volume automated production.
  • dow silastic rtv 3487 silicone rubber_b1b6f874
  • dow silastic rtv 3487 silicone rubber_b1b6f874

Features Of Dow SILASTIC RTV-3487 Silicone Rubber

  1. High-transparency, platinum-cured silicone rubber offering exceptional optical clarity and UV stability.

  2. Low compression set and excellent long-term elasticity for reliable sealing and cushioning performance.

  3. Excellent thermal resistance from –65 °C to +200 °C, maintaining mechanical integrity across wide temperature ranges.

  4. Biocompatibility compliant with ISO 10993-5 (cytotoxicity) and USP Class VI, suitable for medical device applications.

  5. Smooth, non-tacky surface finish with low extractables—ideal for sensitive optical and healthcare components.

Typical Applications Of Dow SILASTIC RTV-3487 Silicone Rubber

  1. Optical bonding and encapsulation of LED lighting assemblies and sensors.

  2. Sealing and gasketing in diagnostic equipment and portable medical devices.

  3. Soft-touch overmolding on handheld electronics and wearable health monitors.

  4. Transparent protective coatings for touchscreens and display interfaces.

  5. Custom molded components for ophthalmic and dermatological delivery devices.

Specifications Of Dow SILASTIC RTV-3487 Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-part liquid system (Part A: base; Part B: catalyst)
AppearanceWater-clear, viscous liquid
Primary ApplicationsOptical bonding, medical device encapsulation, soft-touch overmolding
Key FeaturesHigh transparency, low compression set, biocompatible, thermally stable
Shore A Hardness (Cured, 7 days @ 23°C)35 ± 3
Tensile Strength (ASTM D412)7.0 MPa (min)
Elongation at Break (ASTM D412)450% (min)


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