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When storage space is at a premium, industrial plants often turn to outdoor racks or yards in which to let unused equipment or newly finished parts sit temporarily. However, these areas result in exposure to harsh outdoor environments for the metal parts, with rain, wind, high humidity, and sometimes even sea spray attacking equipment sitting outside.

Corrosion can be rampant as a result. This is a serious problem for large facilities that have no place to store spare equipment except outside, and by the time a spare part is needed, it may be degraded so much that it is not safe to install without further restoration – if it can be used all.

VpCI 126 HP UV Shrink Double

Cortec’s vapour phase corrosion inhibitor technology provides a solution for storing assets outside in harsh environments. Vapour phase action allows simple and relatively easy protection of large internal void spaces and intricate surfaces through the use of VpCI emitting materials. These VpCI products work by releasing vapour phase corrosion inhibitors into the air. When trapped inside an enclosure, the inhibitors absorb or “stick” to metal surfaces, creating an invisible molecular layer that protects against oxygen, moisture, and chlorides—key elements that encourage corrosion. When the enclosure is opened, the VpCI molecules begin to leave the surface on their own, so that no special cleaning is required to remove the protective layer.

Cortec has integrated vapour phase corrosion inhibitor technology into a variety of different packaging materials to provide flexible and effective protection solutions for metal parts and equipment of all sizes. For the outside of equipment or parts, VpCI film such as MilCorr and VpCI-126 HPUV combine corrosion protection with high durability characteristics to withstand the attacks of wind, rain, snow, sun, and sea spray. VpCI emitting material such as VpCI foam, pouches, emitters, or even papers provide an extra source of VpCI protection for larger internal spaces needing protection, with dosage based on volume.

Constant monitoring is not required, although periodic checks once or twice a year can be helpful to make sure the protection system is still intact, the company says. When the equipment is needed again, it can be easily unwrapped without the typical cleaning and degreasing that would be required when using traditional rust preventatives. Often, the parts can be immediately put into use.

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