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

Dow SILASTIC SE 4805 U Silicone Rubber

Dow SILASTIC SE 4805 U is a high-consistency, platinum-cured silicone rubber from Dow’s SILASTIC® portfolio. It offers excellent mechanical strength, thermal stability (–60°C to 200°C), and biocompatibility per ISO 10993. Ideal for medical tubing, seals, and precision molded parts requiring low compression set and consistent cure.
  • dow silastic se 4805 u silicone rubber_56c54062
  • dow silastic se 4805 u silicone rubber_56c54062

Features Of Dow SILASTIC SE 4805 U Silicone Rubber

  1. High-transparency, platinum-cured liquid silicone rubber (LSR) with excellent optical clarity.

  2. Ultra-low compression set for long-term sealing performance under dynamic and static conditions.

  3. Excellent biocompatibility, meeting USP Class VI and ISO 10993-5/-10 requirements.

  4. Fast cure kinetics optimized for high-volume injection molding of precision medical and consumer parts.

  5. Outstanding thermal stability across –60 °C to +200 °C with minimal property degradation.

Typical Applications Of Dow SILASTIC SE 4805 U Silicone Rubber

  1. Disposable and reusable medical devices including syringe components, respiratory masks, and drug delivery seals.

  2. Optically clear housings and light guides for wearable health monitors and diagnostic equipment.

  3. Soft-touch overmolded grips and gaskets in premium consumer electronics and home appliances.

  4. Food-contact compliant seals and gaskets for kitchen appliances and beverage dispensing systems.

  5. High-fidelity acoustic membranes and vibration-damping elements in audio transducers.

Specifications Of Dow SILASTIC SE 4805 U Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-part liquid system (Part A + Part B)
AppearanceWater-white, low-viscosity liquid
Primary ApplicationsMedical devices, consumer electronics, food contact, optical components
Key FeaturesUltra-low compression set, high transparency, biocompatible, fast cure
BenefitsReduced cycle time, improved part consistency, regulatory compliance readiness
Cure SystemPt-catalyzed hydrosilylation
Shelf Life (Unopened, 25 °C)12 months from date of manufacture


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