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

Shin-Etsu KE-575-U Silicone Rubber

Shin-Etsu KE-575-U is a high-performance addition-cure liquid silicone rubber featuring excellent flowability, low viscosity, and superior thermal stability. Ideal for precision molding of medical devices and electronics, it offers outstanding biocompatibility, low shrinkage, and reliable post-cure elasticity. Part of Shin-Etsu’s KE-series, this platinum-catalyzed formulation ensures consistent reproducibility and minimal byproducts.
  • shin etsu ke 575 u silicone rubber_266f6830
  • shin etsu ke 575 u silicone rubber_266f6830

Features Of Shin-Etsu KE-575-U Silicone Rubber

  1. High-transparency, low-viscosity addition-cure liquid silicone rubber (LSR) for precision molding.

  2. Excellent thermal stability and long-term aging resistance up to 180 °C.

  3. Ultra-low compression set (<5% after 70 h at 150 °C), ensuring reliable sealing performance.

  4. Biocompatibility compliant with ISO 10993-5 and USP Class VI for medical-grade applications.

  5. Consistent pot life and rapid cure profile optimized for high-volume automated injection molding.

Typical Applications Of Shin-Etsu KE-575-U Silicone Rubber

  1. Medical devices including syringe plungers, respiratory masks, and implantable component housings.

  2. Consumer electronics seals and gaskets for waterproof smartphones and wearables.

  3. Automotive sensors and under-hood components requiring vibration damping and thermal resilience.

  4. Food-contact parts such as pump diaphragms and dispensing valves meeting FDA 21 CFR 177.2600.

  5. Optical light-guide encapsulation and LED lens overmolding due to exceptional clarity and UV stability.

Specifications Of Shin-Etsu KE-575-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part liquid (Part A + Part B)
AppearanceClear, colorless viscous liquid
Primary ApplicationsMedical, automotive, electronics, food-contact sealing
Key FeaturesLow compression set, high transparency, biocompatible, fast cure
BenefitsReduced cycle time, excellent dimensional stability, minimal extractables
Cure SystemHeat-cured (120–180 °C, 1–5 min typical)
Shelf Life12 months at ≤25 °C (unopened, dry conditions)


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