VpCI-649 BD
A concentration of 0.5% VpCI-649 BD may be all that is needed to inhibit corrosion inside the tooling cooling water system. As time passes, this concentration may change as water is lost. Workers should therefore periodically monitor the water (e.g., by the molybdate tracer or refractometer) to make sure the right level of VpCI®-649 BD remains. Additional water or VpCI-649 BD can be added as needed to maintain the proper concentration of corrosion inhibitor for protection.