Cortec M-640 Powder

Product Description

M-640 is a corrosion inhibiting additive for water and glycol-based 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 organicinorganic 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.

Features

• Protects ferrous and non-ferrous metals from corrosion and pitting  
• Nitrite, chromate, and heavy metal free
• Contains contact and vapor phase corrosion inhibitors  
• Economical  
• Use in low dosages  
• Environmentally acceptable

Physical Properties

Typical Applications

M-640 is an additive for antifreeze/coolant fluids to replace nitrites, phosphates, amines, and other types of restricted corrosion inhibitors.

The final concentration range for M-640 under operating conditions is 0.5-0.8% by weight.

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 150°F (66°C). Under these conditions, shelf life is up to 24 months.