Yes. You can heat cure XTC on a furnace exterior by firing the furnace. Bring the surface up to 350 degrees F slowly, hold it for 20 to 50 minutes, then let it cool back to room temperature slowly.
Target Temperature and Time
XTC reaches full hardness at about 350 degrees F surface temperature. On a furnace, wood stove or similar equipment, firing the unit itself does the cure. Raise the temperature gradually, hold the surface at 350 degrees F for 20 to 50 minutes, then let it cool gradually. A slow ramp both ways helps the coating cure evenly. Start only after the final coat has had at least 8 hours to flash off.
Coat Sequence
Prep to clean, sound metal, wash with KBS Klean at 10 to 1, rinse and dry. Apply 1 to 2 thin coats of XTC Primer for rust protection, then your XTC color in thin coats. liquid XTC is rated to 1500 degrees F. XTC aerosols and XTC Clear are rated to 1200 degrees F, and XTC Primer is rated to 1200 degrees F on its own and 1500 degrees F under liquid XTC. The XTC directions cover every step.
Frequently Asked Questions: Curing XTC on a Furnace
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