US metal coating manufacturer Cortec says its VpCI-368 coating has just become more powerful with the addition of extra Vapour phase Corrosion Inhibitors.
VpCI-368 provides protection to metal substrates exposed to harsh outdoor conditions. The dark brown viscous liquid dries into a firm moisture-displacing wax-like film that can be removed by mineral spirits or alkaline cleaners. The film can be used for a variety of applications where heavy-duty corrosion protection is needed.
VpCI-368 has an extensive record of use for mothballing and layup of equipment, protection of shipments, and preservation of spares.
Now, VpCI-368 EVP (Extra Vapour Protection) is also available for application in complex, sealed spaces where a greater concentration of vapour inhibitor is beneficial. The extra dose of Cortec VpCI vaporizes from the coating, fills the enclosed space, and adsorbs on difficult-to-reach surfaces. This is helpful on applications such as pipe internals where it is challenging to thoroughly cover all metal substrates.
VpCI-368 EVP is UV resistant and passes 900-1500 hours of ASTM B-117 intense salt spray testing applied at 2-3 mils on carbon steel. It also provides multi-metal protection on stainless steel, copper, aluminum, and cast iron. The cured film is heat stable up to 392°F (200°C) and is commercially equivalent to MIL-PRF-16173E (Grades 1 and 2). It can be applied by spray or brush.
Cortec’s VpCI-368 EVP can be used for a variety of applications where heavy-duty corrosion protection is needed.
By Jake Frith
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