VCI Bags

VCI Bags, or Vapor Corrosion Inhibitor bags, are made with poly packaging film converted to a bag manufactured with added VCI chemistry. VCI molecules protect metals from corrosion by forming a thin, invisible layer on the surface. This layer inhibits the corrosion process caused by oxygen, water, and contaminants. VCI bags are typically used when you want to protect metal parts from rust during storage or shipment but don’t want to paint or coat the parts in a rust preventative coating.

VCI bags slowly release a corrosion preventative compound capable of protecting metal surfaces. These bags are often used in situations where it is impractical or undesired to use rust preventative liquids or other surface treatments.

The VCI compounds that these bags release into an airspace actively prevent corrosion by forming strong bonds with a metal surface. This promotes and maintains the natural and healthy passive oxide layer on the metal surface. In addition, the VCI layer that forms is invisible, dry, and does not affect the physical properties or functionality of the metal in any way. Therefore, the protected metal can be painted, treated, and/or used straight out of the package without further cleaning.

VCIs are formulated to protect ferrous metals such as iron, cast iron, carbon steel, chrome, etc. In addition, many specialty VCI products are also available to protect non-ferrous metals such as copper, brass, and bronze from corrosion and tarnish.

Variations

Ferrous: To protect Iron, steel, and cast-iron metals
Non-Ferrous: To protect Aluminum (and aluminum alloys containing copper and/or manganese), copper, brass, bronze, and fully galvanized steel
Multimetal: To protect products that contain combinations of the Ferrous and Non-Ferrous metals listed above