The special feature of Aluma-Hyde II (and the reason for its development) is its increased resistance to bore cleaners, solvents and other cleaning chemicals, even trichloroethylene. Today's family of fast, aggressive bore cleaners really do a terrific job getting dirty gun bores sparkling clean, but they can wreak particular havoc with any other finish they contact. After full cure, Aluma-Hyde II proved solvent-proof to all but the most aggressive, copper-removing bore solvents. Aluma-Hyde II is formulated with a hard-curing epoxy base that contains additional, high-density pigment for a durable finish that sticks to all properly prepared aluminum and alloy surfaces, steel and plas Mfg: Brownells SPECS: 12 oz. (340 g) aerosol can.