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Emerald Group Publishing Limited
Cortec®’s VpCI® 389 – indoor and outdoor multimetal corrosion protection
Article Type: Methods From: Anti-Corrosion Methods and Materials, Volume 62, Issue 2
VpCI®-389 is an environmentally friendly water-based, temporary coating that delivers exceptional multimetal protection for outside applications and salt-spray resistance. This contemporary coating is an advanced, safe replacement for hazardous oil-based products. It is an excellent choice for long-term indoor protection that lasts up to five years and short- to medium-term (6-24 months*) unsheltered outdoor protection.
This completely safe and easy to use coating cures to a soft film and eventually hardens. It is very efficient in SO2 and H2S environments. The product leaves a translucent, waxy coating that is easily removable, it is low in VOC’s and dilutable with water. VpCI®−389 can be easily removed with alkaline cleaners, such as Cortec VpCI-414. It is available in ready-to-use form – VpCI-389 D (1:1). Metals protected are: aluminium, steels, cast iron, copper alloys and tin-plated steel.
Traditional coatings rely on sacrificial metals (zinc, chromates and aluminium) for inhibition. Because of the large particle size of these inhibitors, gaps exist which allow corrosion to start and eventually expand, causing coating failure. Cortec® VpCI-389 coating uses the patented VpCI® technology to protect the metal substrate with a tight bonding molecular structure. This system eliminates the gaps which occur with traditional inhibitors and prevents corrosion from starting. With environmentally safe VpCI® technology, the equipment and products will get superior corrosion protection.
parts processing protection;
maintenance repairs; and
VpCI®-389 coating was tested with excellent results in ASTM D-1748 (humidity chamber test) and ASTM B-117(salt spray chamber test). It is in compliance with RoHS requirements.
More information is available from: http://www.cortecvci.com (Figure 1).
Figure 1 VpCI
-389 temporary coating is the best solution on the market for applications such as equipment lay-up, parts processing protection, overseas shipping, maintenance repairs and parts storage