... watersoluble, spayable antirust powder designed for the corrosion protection of self-seal system. VCI powder,SF/D-331 is watersoluble, spayable ... effective to copper and its alloy, galvanized steel, tinned plate, printed plate, can also for metal contained with iron, aluminum and ... metal unless it pass testing VCI powder, anticorrosive powder bag, VpCI powder, corrosion inhitibors for VCI paper