An Invisible Molecular Layer That Travels With the Metal.
VCI materials are impregnated with corrosion-inhibiting compounds that slowly vaporise inside a closed package. Those molecules fill the enclosed air and settle onto every exposed metal surface — including recesses and bores a coating could never reach — forming a microscopic protective layer that interrupts the electrochemical reaction that causes rust. When the part is unwrapped the layer dissipates, leaving the metal clean, dry and ready to use with no degreasing step. For an exporter that operational simplicity is as valuable as the protection itself.
Because it works through the air rather than as a barrier alone, VCI is ideal for the sealed, humid environment of a shipping container, where machined surfaces would otherwise corrode over a long voyage. BENZ manufactures the VCI film and paper itself, so the grade and inhibitor are matched to the metal and the route rather than bought off a shelf — and on a machine it is specified alongside the DIN 55473 desiccant that dries the surrounding air, the two working together to defeat container rain.