High Temperature Sealants
Heat-resistant sealants for fire-rated & high-temperature applications
Vitcas supplies a professional range of high temperature sealants formulated for use in construction, heating appliance installation, and fire protection systems where heat resistance is critical. Supplied in easy-to-apply cartridges, these sealants are engineered to withstand sustained exposure to elevated temperatures while maintaining adhesion, flexibility, and integrity under thermal stress.
These heat-resistant sealants are ideal for sealing and bonding in environments where conventional sealants would degrade or fail. Whether you're working on a domestic wood-burning stove or an industrial heating system, Vitcas sealants provide durable performance and are compatible with a wide range of materials including metal, ceramic, glass, and refractory insulation boards.
High temperature sealants are used in applications such as:
- Sealing gaps and joints in fireplaces, wood-burning stoves, and chimney flue systems for fire protection
- Installing ceramic flue liners, heat-resistant fire bricks, and other refractory components
- Bonding and assembling cast iron stove panels and high-temperature metal parts
- Sealing around heat-resistant glass in oven doors, stove doors, and hobs
- Jointing vermiculite boards, high-temperature plasterboards, and fire-rated construction boards
- Caulking and filling expansion joints exposed to thermal cycling and elevated temperatures
- Connecting stove outlets to flue pipes with heat-resistant, thermally flexible seals
Technical features:
- High resistance to sustained and intermittent heat exposure
- Excellent adhesion to metal, ceramic, glass, and refractory substrates
- Flexible and crack-resistant under thermal expansion and contraction
- Available in cartridge form for easy application and tooling
- Suitable for interior use and selected exterior installations
- Fire-rated options available for enhanced safety compliance
All sealants in the Vitcas range are designed for high adhesion, easy tooling, and excellent resistance to cracking, flaking, or degradation caused by repeated heating and cooling cycles. They are suitable for both interior and sheltered exterior applications, depending on the product specification.
Heat Resistant Sealant
Vitcas® Heat Resistant Sealant is used for fixing and sealing gaps in ceramics, glass, metal and other silicate materials. High heat resistance up to 1300oC. Heatproof sealant is highly adhesive.
Heat Resistant Silicone
Vitcas® Heat Resistant Silicone is a heatproof flexible sealant for joints in contact with high heat- flues and stove pipes. Maximum service temperature of 300oC. Available in black.
Black Fire Cement - Vitcas BFC
Black Fire Cement Sealant rates to 1250oC. In 310ml cartridges for easy application. Used to seal stove pipes, flues and used in other high temperature joints.
Intumescent & Acoustic Sealant
A halogen-free acrylic sealant which provides a 4 hour fire barrier in pipework, door frames and window sills. Also for sealing fireboards. Has excellent sound damping properties.
Flue Cement
Vitcas® Flue Cement is a high temperature ready mixed fireproof mortar paste. Designed for safe installation and jointing of concrete flue liners in domestic fireplaces and stoves, etc. Resistant to direct flame.
Heat Resistant Filler
Vitcas® Heat Resistant Filler can be used for small cracks around the chimney breast or on the joints in cement boards or mineral fibre boards. Ready mixed air setting material. Sets faster when warm.