VCI stands for Volatile Corrosion Inhibitors, also sometimes called VPI or Vapor Phase Inhibitors. VCIs are a group of assorted products which protect metal surfaces from attack by corrosive agents: moistures, salty air, airborne acids and contaminants. Down load our brochure here

What is VCI?

VCI is an acronym for Volatile Corrosion Inhibitor. VCI chemicals are a class of corrosion inhibiting compounds which have sufficient vapor pressure to release molecules from the compound into the air. PPC VCI products are packaging products which contain the VCI chemicals directly in the packaging. Our packaging products include papers, films, foams, chemicals, nettings, chipboards and many other packaging components, which safely prevent corrosion on protected metals without the need for messy grease, oils, protective coatings or other ineffective methods.

How does VCI work?

Corrosion begins when an electrolyte (water, oxygen, humidity) is present on the surface of a metal. When this happens, electrons then flow from high-energy areas of the metal to low-energy areas on a loop, though the electrolyte. The corrosion process results in the formation of oxidation on the metal surface. Volatile Corrosion Inhibitors retard this reaction by passivating the surface and inhibiting or depressing the electro-chemical mechanism that triggers oxidation, i.e., the current flow from anode to cathode. Electrical current attempts to flow from the anode though the electrolyte into the cathode but cannot because of the VCI’s presence. VCI molecules attach themselves to a metal surface to form an invisible, thin film, possibly only a few molecules or even one molecule thick, to protect metal from attack. PPC VCI products can work for several years to prevent corrosion from occurring on the metal surface.