VCI Gusseted Bags are made with the latest polymer technology and impregnated in low temperatures with vapor corrosion inhibitors (VCIs) to protect ferrous and most non-ferrous metals from corrosion. VCI Gusseted Bags protect metal parts against the corrosive effects of moisture, salt and other contaminants in storage or transit. The slow release vapor action protects the exterior as well as hard-to-reach interior surfaces. It is self-healing and will provide 24 months of long-term protection for storage and overseas shipments. Once the metal objects are packed in our VCI2000 Gusseted Bags, the VCI molecules volatilize and migrate with the air, then condense on all metal surfaces, reaching all exposed and recessed areas.