Pay in 4 interest-free payments of $54.12 Learn more
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
pH or refractometer
phosphate or chromate
Use ONLY on FERROUS metals and aluminum
Moisture displacing and penetrating film
Ready to Use 100% Vapor phase Corrosion Inhibitor
Cortec M-640L - Anti Rust Additive for Engine Coolants - 5 Gal Pail pH or refractometerKey Features: Corrosion inhibiting additive for heat exchange fluids and coolants. Can be added to water and glycol based closed loop systems up to 302F. Contains contact and vapor phase corrosion inhibitors. Protects ferrous and non ferrous metals from corrosion and pitting. Use in low dosages. Cortec's M 640 L is a liquid corrosion inhibiting additive for water and glycol based heat exchange fluids. It protects ferrous and non ferrous metals from
