ShinEtsu KE-4971 – Silicone Rubber for High Performance Industrial Sealing & Molding
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KE‑4971 is a RTV silicone rubber that cures into a strong, flexible elastomer. It offers excellent mechanical strength, chemical resistance, and thermal stability, making it suitable for potting, sealing, and molding in electronics, automotive, and industrial equipment. Its balanced formulation ensures long‑term reliability under mechanical stress, chemical exposure, and elevated temperatures.
Products parameters
| Composition: | Two‑Part RTV‑2 Silicone Rubber |
| Appearance: | Viscous Liquid |
| Cure System: | ~12,000 mm²/s |
| Specific Gravity (25 °C): | ~1.12 |
| Refractive Index (25 °C): | ~1.410 |
| Packaging: | 1kg |
Key features
High mechanical strength – Provides durability under stress and load
Flexibility – Retains elasticity even after repeated cycling
Chemical resistance – Withstands oils, solvents, and industrial fluids
Thermal stability – Performs reliably under elevated temperatures
Long service life – Ensures consistent performance in harsh environments
Electronics Industry (potting, encapsulation, sealing)
Automotive Industry (gasketing, molding, sealing)
Industrial Equipment Industry (durable sealing and molding)
Construction Industry (specialized sealing tasks)
General Manufacturing Industry
