VAPPRO VCI works by emitting VCI molecules into the surrounding area, within an enclosure, until it is completely saturated. These VCI molecules are safe, invisible and odourless.

When the VCI molecules come into contact with the air in the enclosure, an ionic reaction takes place between the VCI molecules and the water molecules in the air.

The VCI molecules in the surrounding enclosure are hydrolized into VCI ions, which form a molecular corrosion protective barrier on the metal surface. This occurs through polarization, and thus passivate the substrate from atmospheric corrosion.

It normally takes approximately 24 hours for the VCI ions to be absorbed on the metal surface.