... of self-seal system. VCI powder,SF/D-331 is watersoluble, spayable volatile corrosion inhibiting powder designed for the corrosion protection of ... sandblasting system or hand blast can also be used. For powder application, with average environmental condition, use 100g/m2, the ... % is recommended,the dosage is 1.0% weight of SF/D-331 powder. Metal protected.Carbon steel, steel alloy, stainless steel, ...