New Pig Epoxy Putty for Steel, Repair Putty to Bond & Blend with Ferrous Metals, 6 Pack - 7&rdquo; L, Gray, PTY264 Specially formulated with the highest-quality epoxy resins to bond and blend with ferrous metals Convenient, premeasured epoxy has Parts A and B in the same tube Mixes easily simply by kneading to a uniform color Cures concrete-hard in 1 hour; once cured, putty can be drilled, sawed, filed, tapped, machined, sanded or painted 3- to 5-minute working time