VpCI®-641 liquid is a water-based, rust preventive additive for the protection of ferrous and non-ferrous metals in industrial waters.

 VpCI®-641 is non-toxic, environmentally safe and does not contain nitrite or phosphate inhibitors. Based on all organic components, VpCI®-641 has the ability to protect at extremely low concentration levels. It is safe, economical to use and easy to dispose of.

 VpCI®-641 contains a combination of contact and vapor phase corrosion inhibitors capable of protecting even partly filled spaces.

 VpCI-641 is formulated to protect metals from corrosion caused by fresh water. The most typical application is addition of VpCI-641 to water during hydrotesting. In some cases, it can be utilized in cooling systems filled with fresh water.