2-part epoxy metal repair compound heavily reinforced with aluminum powder. Its ideal for repairing non-structural defects in aluminum castings.LOCTITE PC 7254 is a gray, 2-part epoxy metal repair compound heavily reinforced with aluminum powder. Its ideal for repairing non-structural defects in aluminum castings, or where an aluminum finish is desired. It has an operating range of +20 °F to +200 °F (+30 °C to +95 °C). Used for repairing aluminum castings, worn aluminum parts, making models/jigs for odd-shaped parts and aluminum dies.