RTV157 is a one-component, ready-to-use, high-strength silicone rubber adhesive sealant that cures at room temperature upon exposure to atmospheric moisture. It forms a tough, resilient silicone rubber with excellent adhesion to various substrates, including metals, glass, ceramics, silicone rubber, and some plastics.
Designed for high-temperature applications, RTV157 provides continuous performance up to 204°C (400°F) and intermittent resistance up to 260°C (500°F) while maintaining flexibility at low temperatures (-60°C/-75°F).
This adhesive sealant offers excellent electrical insulation properties, superior weatherability, ozone resistance, and chemical resistance, making it ideal for industrial, aerospace, automotive, and electronic applications. It adheres well to most surfaces without primers but may require surface preparation for optimal bonding.
| Property | RTV157 Value |
|---|---|
| Uncured Properties | |
| Consistency | Paste |
| Color | Gray |
| Application Rate | 155 g/min |
| Specific Gravity | 1.09 |
| Tack-Free Time | 45 minutes |
| Cured Properties | |
| Hardness (Shore A) | 28 |
| Elongation (%) | 825 |
| Tensile Strength | 68.6 kg/cm² (975 psi) |
| Tear Strength | 16.1 kg/cm (90 lbs/in) |
| Peel Strength | 10.7 kg/cm (60 lbs/in) |
| Electrical Properties | |
| Dielectric Strength | 20.7 kV/mm (525 V/mil) |
| Dielectric Constant | 2.9 |
| Dissipation Factor | 0.0009 |
| Volume Resistivity | 7.5 × 10¹⁴ ohm-cm |
| Thermal Properties | |
| Brittle Point | -60°C (-75°F) |
| Max Continuous Operating Temperature | 204°C (400°F) |
| Max Intermittent Operating Temperature | 260°C (500°F) |
| Additional Data | |
| Linear Shrinkage | 1.0% |
| Thermal Conductivity | 0.0005 cal/sec/cm²°C/cm (0.12 btu/hr/ft²°F/ft) |
| Coefficient of Expansion | 27 × 10⁻⁵ cm/cm°C (15 × 10⁻⁵ in/in°F) |
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Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
Our solutions promise to bring best optimal effectiveness along with competitive prices, excellent customer services, dedicated on-site support.
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