Thermal Adhesive Technicqll R-457 (Silicate) 70 ml — heat resistant up to 1200°C

Technicqll R-457 is a silicate-based thermal adhesive supplied in a 70 ml cartridge and formulated to withstand continuous or intermittent exposure to temperatures up to 1200°C. This refractory adhesive bonds and seals metal, ceramic and other heat-resistant substrates commonly found in furnaces, ovens, exhaust systems and heating elements. The paste-like consistency enables precise application to joints, cracks and mounting surfaces where a durable, high-temperature-resistant seal is required.

Advantages

Technicqll R-457 provides high-temperature stability up to 1200°C and maintains adhesion on dissimilar materials such as metals and ceramics. The silicate chemistry delivers excellent resistance to thermal shock and long-term creep at elevated temperatures. Supplied in a cartridge for controlled dispensing, the material cures to a dense, refractory seal that resists flaking and gas leakage in high-heat environments.

Suitable for

• Sealing and bonding furnace linings and insulating bricks
• Repairing cracks in ovens, kilns and combustion chambers
• Securing and sealing heating elements and thermocouples
• Sealing joints in exhaust systems and high-temperature ducting
• General high-temperature industrial maintenance and refractory repairs

Key specifications

• Base: silicate (refractory glass-ceramic chemistry)
• Packaging volume: 70 ml cartridge
• Maximum service temperature: up to 1200°C
• Consistency: paste for cartridge dispensing
• Cured appearance: dense refractory seal resistant to gas permeation

How to use

Surface preparation is important: clean and remove dust, grease and loose particles from bonding surfaces. Cut the cartridge tip to the required bead size and use a compatible applicator or caulking gun for controlled dispensing. Apply the adhesive evenly to one or both surfaces and assemble parts while the paste is still workable. For gaps and deep cracks, apply in layers as needed. Allow initial setting time at ambient conditions, then perform a controlled heat-up sequence to drive off moisture and complete curing according to the thermal mass and component geometry.

Usage recommendations

Use appropriate personal protective equipment and ensure good ventilation when applying the adhesive. Avoid prolonged skin contact and follow standard safety practices for refractory materials. For best results, refer to component manufacturer's guidelines for heating rates during initial cure and avoid rapid thermal shocks immediately after application.