What is VCI corrosion protection (VpCI)® - how does it work?

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Dry rust protection - here's how it works

The products to be protected are placed in a VCI (VpCI), for example a bag. When the bag is sealed, an active process starts that gives you comprehensive rust protection down to the smallest porosity, for as long as you wish. Previously time-consuming and sometimes even harmful methods, such as lubricating components with grease or oil, will become a thing of the past. Tribotec's dry VCI technology benefits the working environment and nature while saving you time.

Read more this spring fact article on dry rust protection.

Liquid corrosion protection - here's how it works

The products to be protected need to be dipped, sprayed or brushed with a liquid VCI (VpCI) product, for example a water-based VCI rust protection. When the liquid is on the surface, an active process starts that gives you comprehensive rust protection down to the smallest porosity, as long as the product remains on the surface. Previously time-consuming and sometimes even harmful methods, such as lubricating components with grease or oil, will become a thing of the past. Tribotec's liquid VCI technology benefits the work environment.

Read more this spring fact article on liquid rust protection.

Shortest readiness time

When unpacking, the benefits become even more tangible. No clean-up work is needed, the components can go directly to assembly or the machinery can be unpacked, installed and commissioned in record time. The time savings will be as impressive as the cost savings.

Short- and long-term protection

We have solutions for you regardless of whether you need temporary protection in factories, a little longer protection during shipping and storage or long-term protection for stored parts for varying environments and weather conditions.

Please contact us for more information!

Rust protection program

How does it work?

To understand how vci rust protection works, we start by looking at the definition of corrosion inhibitor.

The definition of a corrosion inhibitor according to (NACE) National Association of Corrosion Engineers is a substance that counteracts corrosion when added to the environment in small concentrations. A corrosion inhibitor works according to one or more of the following functions:

  1. By adsorption as a thin film on the surface of the corroding material
  2. By inducing a thick corrosion surface
  3. By creating a passive surface on the metal surface
  4. By changing the environment or by producing precipitates, remove or disable aggressive media.

Unlike protective coatings and desiccants, the VCI rust prevention method provides both active and passive protection. The chemical corrosion process is immediately affected by vapor phase and contact phase inhibitors.

VpCI® means vapor phase inhibitor and is a registered trademark of Cortec® Corporation to make it clear that Cortec®VCI has a true vapor phase protection and not just a contact protection that most VCI products have.

Cortec VCI corrosion protection (VpCI®) is a cost-effective method that provides a multi-metal protection (protection for ferrous and non-ferrous metals in one and the same product).

This is how VpCI® works

VpCI®inhibitor is transported via a vapor phase to all surfaces of the metal surface to be protected. As long as there is enough inhibitor in the vapor phase around the metal to maintain a condensed phase on the surface, adequate protection is achieved.

The vapor phase only acts as a transport aid from the source to the metal surface where it builds up a molecularly thick layer as protection and thus stops the attack. All surfaces, even crevices, recesses and other inaccessible surfaces are fully protected with VpCI®.

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