SELSIL Fire Sealant High Temperature Fireplace & Stove Sealant - 2700°F - Heat Resistant Fireproof Caulk for Chimney, Oven, BBQ Grill and More – Fast Curing, Crack Resistant, 2x10.1 fl oz, 2 Pack

SELSIL Fire Sealant is a high-temperature resistant sealing compound formulated with sodium silicate technology to withstand extreme heat up to 2700°F (1500°C). Designed for demanding heat applications, it provides a durable, crack-free seal in areas exposed to intense thermal stress. This fireproof sealant and high-heat caulk is ideal for sealing and repairing fireplaces, wood stoves, chimneys, ovens, furnaces, BBQ grills, flue pipes, and heating systems. Its powerful adhesion ensures reliable bonding to porous construction materials such as brick, concrete, mortar, and stone, as well as metals commonly used in heating installations. The fast-curing formula allows for efficient installation while maintaining long-term durability under extreme conditions. Once cured and heat-activated, the sealant forms a rigid, heat-resistant barrier that prevents cracks and gaps from compromising the safety and efficiency of heating systems. Packaged in a 10.1 fl oz cartridge compatible with standard caulking guns, SELSIL Fire Sealant is easy to apply for both professional installers and DIY home repairs. Typical Applications: Sealing fireplace joints and seams Repairing wood stove and pellet stove connections Sealing chimneys, flue pipes, and furnace joints High-temperature sealing for ovens and BBQ grills Filling cracks and gaps in heat-exposed masonry and metal assemblies Key Features: Heat resistance up to 2700°F (1500°C) Fast curing and crack-free durability Excellent adhesion to brick, stone, concrete, and metal Low odor and solvent-free formula Water cleanup before curing Cartridge compatible with standard caulking guns Whether you are installing a new fireplace system, repairing a wood stove, sealing a chimney joint, or performing furnace maintenance, SELSIL Fire Sealant provides the high-temperature performance and reliability required for critical heat-exposed sealing applications.

• EXTREME HEAT RESISTANCE UP TO 2700°F: SELSIL Fire Sealant is engineered for extreme temperature environments, resisting heat up to 2700°F without cracking or breaking down. This high temperature fireproof sealant is ideal for sealing joints exposed to direct heat in fireplaces, wood stoves, chimneys, ovens, furnaces, and BBQ grills.
• STRONG ADHESION TO POROUS MATERIALS & METALS: Special sodium-silicate formula bonds securely to brick, stone, concrete, mortar, and metal surfaces, creating a durable heat-resistant seal. Designed for sealing stove pipes, flue connections, fireplace gaps, and chimney joints where reliable adhesion is critical.
• FAST CURING, CRACK-FREE PERFORMANCE: This high heat fireplace caulk cures quickly and forms a hard, durable seal that resists shrinking and cracking even under intense thermal stress. Perfect for repairing fireplace seams, furnace joints, stove installations, and high-temperature construction applications.
• EASY APPLICATION WITH STANDARD CAULKING GUN: 10.1 fl oz cartridge fits standard caulking guns for precise and controlled application. Simply clean the surface, apply the sealant, and allow it to dry. For optimal performance, briefly heat the sealed area to 392°F after curing.
• LOW ODOR, SOLVENT-FREE FORMULA: SELSIL Fire Sealant is solvent-free and low odor, making it easier to use for indoor repairs and installations. Uncured material can be cleaned with water, while the cured seal forms a permanent mechanical bond for long-lasting fire-resistant sealing.