VpCI-277 is Cortec Corporation’s dry film rust preventative designed for preserving metals during storage and transportation. VpCI-277 reportedly combines film-forming additives with vapor-phase corrosion inhibitors to provide multi-metal corrosion protection. Cortec says it is ideal for robotic assembly of precision components requiring tight tolerances; it helps maintain a clean preservation process without introducing chlorinated compounds, chromates or nitrites.
VpCI-277 can reportedly provide corrosion protection for up to two years of indoor storage or during domestic or international shipments when combined with VpCI packaging materials. The product leaves a dry, non-tacky, virtually undetectable film on the metal surface.
The use of rust preventatives to preserve metals during storage and transportation has traditionally been a hazardous and messy process in which greasy rust preventatives must be applied and removed several times. Applying a rust preventative protects the parts but often requires an additional step of cleaning before the components can go through the next phase of the process.
In comparison, VpCI-277 can be applied by spray or dip and left on metal parts during further processing or shipment. It does not require removal by the end user because the undetectable film does not interfere with use of the product in tight tolerances. Cortec says this eliminates the extra step of cleaning, cutting down on labor time and expenses by enabling a more streamlined tooling, storage and shipment process.
VpCI-277 is said to conform to ASTM D1748 (humidity), ASTM D1735 (water fog), MIL-C-83993 (water displacement) and NACE RP0487-2000 (selection of rust preventives) standard test methods.