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Green pouch guards against corrosion

October 2017

Cortec Corporation has launched a “green” vapour phase corrosion inhibitor (VpCI) called BioPouch that protects metal parts in a non-ventilating space.

BioPouch uses Nano VpCIs, primarily made from agricultural by-products.

The VpCIs emitted from the pouch saturate the enclosure via diffusion, filling all void spaces and recessed areas with protective vapour molecules, which are attracted to and adsorb onto metallic surfaces, resulting in the formation of a nano protective barrier layer.

Studies have shown the excellent ability for VpCI molecules to provide protection in the presence of corrosive  elements  such as chlorides, moisture, sulphides, and displace them at the metal surface, a company spokesman says.

“In case a nano protective layer is disturbed by moisture or opening of an enclosed space, the layer is replenished by continuous vapour re-deposition. The Nano-VpCI does not destroy the natural balance of the environment while being functionally superior to hazardous oil derived products,” he says.

Easy to use, each BioPouch protects up to 1 cu m of enclosed space and can be used on tubular structures, pipes, and vessels; internal surfaces of compressors, turbines, engines, tanks, boilers, heat exchangers; steam condensate lines, closed circuit heating, and cooling systems; corrosion protection of equipment after hydrostatic testing; voids, cavities, and tanks; and double bottom storage tank floors.

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