The Evers Valeno VCI process (shortened name: EV-VCI process) describes a system which effectively protects metal parts against the negative effects of atmospheric oxygen and moisture. VCIs are volatile corrosion inhibitors which are integrated in the different packaging materials (e.g. polyethylene, polypropylene, foam, paper, solid fibreboard and corrugated board).
A uniformly distributed concentration of vaporised corrosion inhibitors forms in the free air space of an enclosed, sealed VCI packaging. These inhibitors are attracted to packed metal objects and form an invisible protective film on the surface of the metal.
The protective film consists of VCI active agents, which prevent corrosion together in complex protective mechanisms as long as the metal object is within the enclosed, sealed packaging. Such corrosion protection packaging provides corrosion protection for storage and worldwide transport.
After the packaging is opened the VCI protective film evaporates from the metal surface and allows unlimited and direct further use without cleaning procedures.