What are VpCIs?
VpCI stands for Vapor Phase Corrosion Inhibitors, also sometimes called VCI (Volatile Corrosion Inhibitors) and VPI or Vapor Phase Inhibitors. VpCIs are a group of assorted products which protect metal surfaces from attack by corrosive agents: moistures, salty air, airborne acids and contaminants.

How do VpCIs work?
VpCIs condition enclosed air with trace amounts of inhibiting material. Protective vapors disseminate in the enclosed space through vaporization. The inhibiting process begins when the vapors contact the metal surface and condense to form a thin protective crystal layer one or two molecules thick. In the presence of even minute quantities of moisture, or acids the crystals dissolve and form a protective film between the moisture layer and the metal surface.

Advantages
-VpCI vapors re-heal and self-replenish themselves

-More cost effective protection

-Efficient delivery systems make it economical to protect hard-to-protect items

-Easy to apply

-No need to remove VpCI protection before using product in many cases

-Extends equipment life

-Provides up to 24 months of continuous protection for many applications

-Vapor phase inhibitor’s action protects inaccessible and recessed surfaces

-VpCI layer does not interfere with operation of mechanical components

-Does not contain nitrites, silicones. phosphates. or heavy metals

-VpCIs are self-replenishing to provide continuous protection if package is disturbed by opening

-No spraying, wiping. dipping or surface preparation required

-Available in multiple-forms for each unique application

-Multi-metal protection

Disadvantages
Since the VCI protecting mechanism is a vapor deposition action, albeit a very thin molecular layer, it is not advisable to use some VCI products with optics or mirrors or other products where a very clean surface is a requirement.

VpCIs require that the product and the VCI emitting source be enclosed together in the package or the vapor will simply dissipate.

Why VpCI’s

Health, safety and pollution control
Cortec ‘s® formulations, using the newest chemical technology available, help alleviate your concerns in the areas of health, safety, flammability and pollution control.

Multimetal protection.
A full range of corrosion inhibitors is available to protect ferrous and non-ferrous metals, including formulations that protect combinations of metals.

Short- and long-term protection.
There’s a Cortec solution whether you need temporary protection during in-plant processing, medium-term protection for shipment and storage or extended protection for a variety of environmental conditions. Now you can effectively protect your metals and products against humidity and aggressive atmospheres as well as against corrosive industrial, marine and tropical atmospheres.

Protected parts are immediately ready for use.
The protective invisible layer deposited by Cortec Vapor phase Corrosion Inhibitors (VpCIs) needs no removal. No degreasing, scraping, cleaning or further preparation is necessary before processing, installation or use. Your VpCI protected components, parts and finished assemblies are always ready for immediate use. Does not alter most material properties. In the majority of cases, the invisible protective ionic layer of Cortec VpCIs does not alter important surface properties. This is true even for precision electronic devices where conductivity, permittivity and dimensional tolerances are crucial.

For tiny electronic devices to tanker holds.
Cortec VpCIs protect any size product —from printed circuit board components in processing, or parts stored in a small box, to large transport container shipments.