Imperial Mfg Group Usa Inc KK0067-A Gray Cement Mortar 10.3 Oz

Product Description

The IMPERIAL MFG GROUP USA INC KK0067-A is a 10.3-ounce gray cement mortar cartridge formulated for high-temperature masonry repair in heating appliances and fireplace systems. The mortar is engineered to withstand temperatures up to 2,000 degrees F (1,093 degrees C) and becomes as durable as firebrick once heat cured. It meets ASTM E136-79 flammability test requirements. HVAC technicians and fireplace service pros use this product for fast, reliable repairs to cracked or chipped firebrick and deteriorated mortar joints.

This cartridge is especially suited for tuck pointing mortar into damaged masonry-to-masonry joints in fireplaces, wood stoves, fire pits, and similar solid-fuel or gas-fired heating appliances. The cartridge format is compatible with standard caulking guns, making application straightforward in confined or overhead work areas. It is a go-to repair material when firebrick integrity is compromised and full brick replacement is not warranted.

Key Features

• Withstands up to 2,000 degrees F — rated for direct firebrick contact and high-radiant-heat zones
• Becomes as durable as firebrick when fully heat cured
• Meets ASTM E136-79 flammability test requirements
• 10.3-ounce cartridge fits standard caulking guns for controlled application
• Gray color blends with standard firebrick and masonry mortar
• Suited for tuck pointing, crack filling, and chipped firebrick repair

Compatibility

Designed for use in masonry-to-masonry joint repair applications including fireplaces, wood stoves, and other solid-fuel or gas-fired heating appliances that use firebrick liners or masonry construction.

Installation Notes

Surface preparation is critical — remove loose debris and existing deteriorated mortar before applying. Apply with a standard caulking gun and tool joints to match the surrounding masonry profile. Allow the repair to air dry before initiating a heat-cure cycle; consult the product instructions for recommended curing procedure. Work in a well-ventilated area and wear appropriate PPE when working inside fireboxes or flue enclosures.