What is VCI-Foam?
VCI-Foam is an innovative dry anti-corrosion material that effectively protects metals from corrosion during transport and storage. The foam is impregnated with Cortec's advanced Vapour Phase Corrosion Inhibitor (VpCI®) technology with active substances that saturate the air and form an invisible barrier on all metal surfaces.
Effective corrosion protection for industry and exports
VCI-Foam is ideal for complex shapes and delicate electronics that cannot withstand traditional anti-rust oil or grease. The solution acts as a complete multi-metal protection for materials such as steel, iron, aluminium and copper. Cortec VCI-Foam is supplied as:
Want to learn more about the type of corrosion protection best suited to your business? Read more the article on liquid rust inhibitors and more about how dry rust inhibitors work here.
How does VCI-Foam work?
VCI-Foam uses a unique vapour phase process to provide optimal and long-lasting protection:
- Evaporation: The VCI molecules are released and dispersed in the confined space.
- Condensation: The molecules adhere to all metal surfaces and form a molecular protective film.
The protection is activated immediately and remains functional during extreme temperature changes (-35 °C to +85 °C).
For which applications is VCI-Foam used?
Choosing the right type of corrosion protection material is an investment. Depending on your industry, VCI-Foam offers unique benefits that streamline handling in the following applications:
Industry/sector | Usage | Specific benefits |
| Engineering industry | Machinery parts and cast iron components | High concentration of VCI provides protection where paper is not enough |
| Electronics & Electrical Power | Electrical cabinets, circuit boards and control panels | Does not affect electrical conductivity or precision |
| Automotive industry | Engine components and CKD gasket | Acts as a booster in export packaging |
| Marine & Off-shore | Spare parts in the marine environment | Resistant to salt-saturated air and high humidity |
| Aerospace industry | Turbine parts and precision components | Protects aluminium, magnesium and steel alloys |
| Long-term storage | Spare parts and seasonal machinery | Physical cushioning protection and up to 2 years of rust protection |
See examples of all uses here.
Frequently asked questions about rust protection
How long does the protection last?
In a sealed package, VCI-Foam provides active corrosion protection in up to 24 months. When combined with VCI plastics, the protection time can be further extended.
Does VCI-Foam work in high humidity?
Yes, VpCI® technology is extremely effective at high humidity. The molecules neutralise the moisture directly on the metal surface.
When to use VCI-Foam instead of paper?
VCI-Foam should be used when you need both chemical corrosion protection and physical shock absorption. It is ideal for sensitive electronics, complex geometries and large volumes that require high protection. Read more about other corrosion protection for electronics and electrical cabinets.
Can VCI-Foam be combined with other packaging?
Yes, it works great as a ”booster” inside boxes, containers or VCI plastic bags.
Are VCI products safe for the user?
Yes, the Tribotec VCI range is completely free of nitrites and phosphates. The products are safe to handle during packing and storage and do not require special warning labelling.
Tribotecs VCI-Foam: technical specifications
- Thickness/Density
Available in thicknesses from 6 mm to 13 mm (standard), as well as customised densities. - Sizes
Standard sheets (e.g. 25×25 cm) and rolls up to 1.5 m wide. - Temperature range
Effective from -35 °C to +85 °C. For short-term exposure and in specialised versions, the material can withstand higher thermal stress during transport. - Protection capacity
Depends on size. A 25×25 cm sheet protects up to 250 litres of closed volume. - Certifications
ISO 9001, ISO 14001, REACH, RoHS and fulfil military specifications according to MIL (MIL-PRF-81705D). - Environmental profile
Nitrite-free technology. Also available as a bio-based alternative (BioPad®) made from renewable fibre material.
Want to know more about corrosion protection solutions?
Explore our range of VCI-Foam or read more about other ways to prevent rust. Please contact our experts for advice on how to best protect your products against corrosion during transport and storage. See our range of VCI-Foam and order today!
This article is fact-checked by Mats Gunnemyr, product manager corrosion protection at Tribotec.
