|Description: VpCI-406 is a phosphate free cleaner designed to remove salt, grime, oils, greases, and carbon deposits. VpCI-406 provides protection against flash corrosion on ferrous and non-ferrous metals. VpCI-406 can be metered into automatic bus and car washes, steam cleaners, dip tanks, or power wash equipment. Minimizes water spotting due to hard water. VpCI-406 offers improved cleaning and corrosion protection action in one process.