Fast-curing, steel-filled epoxy for emergency repairs at temperatures as low as 40°F. -Cures to a tough, steel-filled material. -Can be machined, drilled, tapped, or sanded. -5-minute working time. Name: -Steel Putty. Generic Specifications: -Dielectric Strength: 35.0 V/mil. Dimensions: Overall Product Weight: -1.5 Pounds.