J-B High Heat is a steel reinforced epoxy putty that will make repairs on wet & dry sufaces. Product will withstand consistant tempatures of 550 F degrees. Bonds to any surface. Cures completely submerged in gasoline or under water in 60 minutes. Can be sanded, filed, tapped, machined, sanded, andpainted once cured. Product is NSF drinking water safe. Made in the USA.