Later mixed (ambiodic) Volatile Corrosion Inhibitors (VCI) have been developed. They are capable to combine the effects of both anodic and cathodic inhibitors. A depressing of the cathodic reaction is achieved due to the restriction of the oxygen transportation.
Volatile corrosion inhibitors may be added to various package materials: polymer film (eg. low density polyethylene), paper, foam, powder, powder sachets, oils, tablets. carton chips, etc.).