Imperial Mfg Group Usa Inc KK0077-A Furnace Cement 8 Oz

Product Description

The IMPERIAL MFG GROUP USA INC KK0077-A is a pre-mixed, black silicate ceramic furnace cement supplied in an 8 oz container. It is formulated to seal joints and gaps in high-temperature combustion equipment, including furnaces, boilers, fireplaces, and wood stoves. The cement has a creamy, smooth consistency that applies cleanly and becomes as durable as firebrick once heat cured. It withstands continuous temperatures up to 2,000 degrees F, making it appropriate for demanding thermal cycling environments. HVAC technicians, plumbers, and fireplace installers use this product as part of routine service and installation work on solid-fuel and gas-fired appliances.

This furnace cement is suited for residential and light commercial applications where metal-to-metal or metal-to-masonry joints require a high-temperature sealant. It adheres to cast iron, steel, and firebrick surfaces, which covers the most common joint types found in furnaces, fireboxes, stovepipe connections, and chimney collar penetrations. The pre-mixed formula requires no additional preparation before application, reducing steps during service calls.

Key Features

• Withstands temperatures up to 2,000 degrees F after heat curing
• Pre-mixed silicate ceramic formula — no mixing required
• Bonds metal to metal and metal to masonry surfaces
• Compatible with cast iron, steel, and firebrick substrates
• Cures to firebrick-equivalent hardness under service heat
• Black color blends with typical furnace and stovepipe finishes

Compatibility

Designed as a general-purpose high-temperature sealant for furnaces, boilers, fireplaces, wood stoves, and similar combustion appliances requiring sealing of cast iron, steel, or firebrick joints.

Installation Notes

This product is typically applied by HVAC technicians or plumbers during appliance installation or service. Always shut down and allow the appliance to cool completely before applying furnace cement to any joint or seam. Apply in a continuous bead or trowel smooth to fill the joint fully, then allow to air dry before initial firing. Follow the appliance manufacturer's recommended cure cycle and applicable local codes, including IFGC requirements for venting and combustion appliance service.