... often used for hydrostatic test.Features/Advantages1 The VCI powder is especially applicable to the internal surface antirust of ... complies with RoHS directives.Applicable Metals:The VCI powder is applicable to ferrous metal, alloy steel, cast iron, copper, brass, bronze ... and its alloy, chrome and its alloy, cadmium and its alloy, nickel and its alloy, tin and its alloy, aluminum and its alloy, and ...