The direct cost of atmospheric corrosion initiative of oxygen, moisture, and acid type compounds in metals and alloys is estimated at 5 billion annually. The use of VCI (Vapor Corrosive Inhibitors) is one way to protect these metals from corrosion. These VCI products emit a vapor that condenses on the surface of the part and forms a corrosion-inhibiting layer. This product is free from nitrates with no adverse effect in use.
Cel-Span® 720B is a VCI/or anti-corrosion inhibitor concentrated in pellet form in a polyolefins base resin.
Pellet Size 1/8 in
Letdown Ratio 4 - 6% depending on thickness and lifetime of the film.
Industries Supplied Film
Resin Compatibility Polyolefins
Product Form Pellet
Recommended Loading 4 to 6 %
Parts, components, and completed assemblies during shipping and storage
Tools, spare parts and components, bin and box liners & motors and mechanical control
Electrical equipment and controls & Long tubular products and pipe
Heat sealable with standard equipment. However, bags or sheets can be tied, folded, taped or stapled for protection equivalent to a heat sealable enclosure. The VCI film does not have to be in contact with the metal to protect, the vapors travel to all portions of the enclosure.
Anti-corrosion properties are activated immediately after the production of the film. VCI films exhibit anti-corrosion of properties at temperatures below 5 ºC/41 ºF. Optimum protection effect is best when objects are completely sealed within the film.
Toxicity & Packaging
No adverse health effects from the use of the VCI additives in Cel-Span® 720B are known. All additives in the formulation are listed on the GRAS & TOSCA approved. This product is free from nitrates and there are no known adverse effects on the working environment. Packaged in 220 lb. foil lined fiber drums. We recommend that this product be kept closed in a dry place.