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Easy Way to Prevent Corrosion Inside Void Spaces of Idle Equipment or Permanent structures: Waterborne Corrosion Inhibitor - Safe, Cost-effective and Easy to Apply!

December 22, 2022

Vpci 337 Pr - Cortec Corporation VpCI®-337 is a ready-to-use waterborne corrosion inhibitor used primarily for robust preservation of internal void spaces. It is effective on multiple metals. Vapor phase Corrosion Inhibitors in VpCI®-337 migrate to protect metal surfaces, resulting in time and cost savings. When combined with labor saving techniques, a minimum amount of product can be used to protect large areas or volumes.

Since the product is water-based and will not clump, it is also ideal for equipment with complex geometries such as boilers, heat recovery steam generators (HRSGs), and pressure vessels. Nitrogen purge or blanketing is commonly used to protect metal void spaces from corrosion by replacing the oxygen with nitrogen gas. Unfortunately, nitrogen gas is expensive and requires constant pressure with an airtight seal and regular monitoring. VpCI®-337 can be used as an alternative to nitrogen blanketing for easy, effective corrosion protection of void spaces. Compared to nitrogen blanketing and dehumidification, VpCI®-337 provides disproportionately better corrosion control at a lower cost and higher success rate. Once equipment has been treated with the product, it will remain protected for up to two years with no subsequent application necessary. Protection stays strong regardless of environmental conditions.

VpCI®-337 is used in various applications from large items such as heat recovery steam generators to small crates of metal parts. It has been used for protection of aboveground storage tank (AST) internals at a sulphor recovery plant, fuel tanks in retired aircraft stored outdoors during museum renovation, and internals of pig receivers en route from the construction yard to their offshore installation site.

The product is completely water-soluble, allowing ease of use for pigging, purging, or other existing processes. No degreasing or stripping is necessary. The metal will retain a clean and rust-free surface. In most cases, the thin protective film will not affect paint processes, conductivity, appearance, or any other important property of metals or alloys. VpCI®-337 Winterized has a lower freezing point for the convenience of application and storage in cold temperatures. VpCI®-337 is also available as EcoAir® VpCI®-337 in recyclable spray cans powered by compressed air.

TYPICAL APPLICATIONS
• Pipes, spools, modules
• Void space protection
• Edge spray for coils
• Double wall spaces
• Complex internal cavities
• Deep storage of key assets

*Biodegradability applies to standard VpCI®-337 only

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Keywords: VpCI-337, corrosion inhibitors,  Cortec, protect metal surfaces, void spaces, aboveground storage tank, EcoAir.

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