SteelStik Steel Reinforced Epoxy Putty Stick - 2 oz.epoxy putty SteelStik is a hand-mixed, steel-reinforced, non-rusting epoxy putty that quickly repairs or rebuilds anything made of metal. After mixing, it forms an industrial strength polymer compound that can be molded into shapes or used to build, repair steel components. SteelStik sets in 3-5 minutes and after 60 minutes, can be drilled, tapped, machined, ground, filed and painted. SteelStik cures to a dark gray color, has a tensile strength of 900 PSI, and is temperature resistant to 300oF. additional attributes Chemical resistant against petroleum, hydraulic fluids and other aggressive chemicals when fully cured. NSF certified - safe for contact with drinking water. It can withstand continuous temperatures of 300°F (149°F) intermittent 452°F.