Contractor Pack of the black furnace cement is a case of 12 cartridges that bond metal to metal to make joints smoke and gas tight. The high temperature furnace cement withstands 2000°F temps to allows its use on stoves, grills, ranges, furnaces and other hot surfaces. Ideal high heat sealant for metal to metal joints under 1/8".Wear rubber gloves and eye protection during application. Protect work area from accidental spills. Water clean up when wet. Remove by sanding, scraping or sandblasting when dry and cured. Furnace cement on glass and enamel surface must be wiped up with warm water immediately or permanent etching will occur. Dried cement cannot be removed from glass or enamel.
Be sure fire is extinguished and that all surfaces are cool to the touch. Insert cartridge in caulking gun and cut tip on an angle to desired diameter. Thoroughly remove all dirt, rust and foreign matter from the surface to be bonded. Dampen area lightly with water and apply cement. Allow at least 24 hours for setting. Cement must be hear cured to obtain maximum strength. Heat gradually when first starting fire after 24 hour setting.
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