Cortec VpCI-M640 Inhibiting Powder Additive for Water and Ethylene Glycol-Based Engine Coolants

5 lbs. - CUSTOM PRODUCT

M-640 is a corrosion inhibiting additive for water and ethylene glycol-based engine heat exchange fluids. It protects ferrous and non-ferrous metals from corrosive contaminants. This product is an excellent replacement for phosphate/nitrite-based/amine compounds. M-640 is based on an organic-inorganic formulation designed for low level concentrations in field applications.

M-640 contains a unique combination of contact and vapor phase corrosion inhibitors that provides corrosion protection even in partially filled spaces. For situations with extremely hard water, or requiring more vapor phase protection, use M-640SC.

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