The Versachem Heavy Duty Fuel Tank Repair Kit permanently repairs gasoline and diesel metal fuel tank leaks in less than 20 minutes. Use it to repair holes up to 1” diameter and cracks up to 5” length. Includes epoxy, sandpaper, fiberglass cloth and application brush. Resistant to water, gasoline, diesel and kerosene. No draining and no welding required. Have the repair ready before mixing the hardener and resin together, so that you can begin repair as soon as the pouch contents are thoroughly mixed. Heat is generated while the epoxy mixture cures.