Cortec®’s VpCI® 389 Number One Choice for Indoor & Outdoor Multimetal Corrosion Protection! 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 5 years and short to medium-term (6-24 months*) unsheltered outdoor...