M-640 Powder

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.

Packaging and Storage: M-640 is available in 100 pound (45 kg) polyethylene lined drums. Store in a sealed container in a dry warehouse, avoiding direct exposure to sunlight, with temperatures not exceeding 150ºF (66ºC). Under these conditions, shelf life is up to 24 months.