What is VCI? | Volatile Corrosion Inhibitor
Protecting metal assets from atmospheric rust and corrosion is critical during storage, transport, and fabrication. Traditional anti-corrosion methods can be messy, time-consuming, and difficult to remove. Understanding how Volatile Corrosion Inhibitor (VCI) technology works can completely streamline your corrosion prevention strategy while saving valuable time and labor costs.
What is a Volatile Corrosion Inhibitor (VCI)?
A VCI (volatile corrosion inhibitor) is a chemical compound infused into protective materials that actively prevents rust and oxidation on metal surfaces.
How VCI Protection Works
- Direct Contact Protection: The VCI chemistry forms a micro-thin protective layer on the specific metal surface it touches, shielding carbon steel and specialty metals from moisture and ambient air.
- Residue-Free Removal: When the time comes for commissioning, our VCI-infused protectors peel away cleanly, leaving no sticky residue behind for crews to scrape off the gasket sealing surface.
- Streamlined Workflow: The process is simple—clean and inspect the flange face for damage, then press the protector into place.
Which P3 Products Have a VCI Additive in the Adhesive?
At Precision Piping Products, we incorporate high-performance Cortec VCI additives directly into the adhesive of several key product lines. If you use these products, you eliminate the need to manually apply separate grease, coatings, or oils directly onto the metal:
- flangeDOTS®: Protects gasket sealing surfaces while actively preventing edge and face corrosion.
- flangeDOTS™ +Tag: Combines standard surface protection with an integrated visual indicator tab for easy inspection.
- flangeRINGS™: Designed to shield raised-face gasket contact areas on larger or custom-sized flanges.
- batROLLS™: Roll-form adhesive protection ideal for rapid application across multiple flange faces during fabrication or staging.
By integrating VCI directly into our adhesive flange protection, we eliminate extra steps, cut down on prep time, and ensure your piping assets remain rust-free and installation-ready.


