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High-Temperature RTV Silicone Rubber
High-Temperature RTV Silicone Rubber is a heat-resistant elastomer that cures at room temperature. It offers flexibility, durability, and chemical resistance for sealing, bonding, and insulating in harsh environments.
Product Overview
High-Temperature RTV Silicone Rubber is a specialized, room-temperature vulcanizing elastomer engineered to withstand extreme heat environments while maintaining excellent flexibility, durability, and chemical resistance. It cures rapidly at ambient conditions without the need for additional heat, making it ideal for sealing, bonding, and insulating applications in industries such as aerospace, automotive, electronics, and industrial manufacturing.
Key Technical Specifications
| Property | Typical Range | Test Method |
|---|---|---|
| Operating Temperature | –60 °C to +300 °C (continuous) | Internal Testing |
| Shore A Hardness | 25 – 65 | ASTM D2240 |
| Tensile Strength | 2 – 9 MPa | ASTM D412 |
| Elongation at Break | 150% – 600% | ASTM D412 |
| Tear Strength | 15 – 40 kN/m | ASTM D624 |
| Cure Time (23 °C, 50% RH) | 15 – 60 minutes (skin time) | ASTM C679 |
| Dielectric Strength | ≥20 kV/mm | ASTM D149 |
| Linear Shrinkage | ≤0.5% | ASTM D2566 |
Key Features & Technical Benefits
Wide Operating Temperature Range
Performs reliably from –60 °C up to +300 °C continuous use; some formulations withstand intermittent spikes above 320 °C.Superior Thermal Stability
Maintains mechanical properties and dimensional stability under prolonged high-temperature exposure.Excellent Chemical and Weather Resistance
Resistant to oils, fuels, solvents, UV radiation, ozone, and moisture—ideal for harsh environments.Fast, Moisture-Cure System
Room-temperature vulcanization enables easy application without ovens or curing chambers.Low Shrinkage & Strong Adhesion
Ensures tight seals on metals, glass, ceramics, and many plastics with minimal deformation.Electrical Insulation
High dielectric strength supports use in electronic potting and insulating applications.
Typical Applications
Aerospace: High-temp gaskets, seals, and insulation for engines and exhaust systems.
Automotive: Engine component seals, turbocharger gaskets, and fuel system seals.
Electronics: Potting and encapsulating components exposed to elevated temperatures.
Industrial: Furnace door seals, heat-resistant adhesives, and flexible high-temp molds.
Silico® High-Temperature RTV Silicone Rubber offers unmatched performance in extreme heat applications, combining rapid room-temperature cure with superior thermal and chemical resistance. Contact Silico® for custom formulations, technical datasheets, and samples tailored to your needs.
Jessica G.
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