Cortec M-370

Product Description

M-370 is a multimetal, corrosion preventive additive for water-based metalworking fluids, lubricants, cleaners and coatings during product manufacturing. This water-based additive utilizes VCI technology for maximum protection.

M-370 is also available in:

• M-370 NS, a surfactant-free version, which helps in some detergent formulations  
• M-370 HS, a high surfactant version for providing a source of a compatible surfactant with levels high enough to clean  
• M-370 C, which provides additional protection to cast parts and surfaces which are rough

Features

• Water-soluble  
• Environmentally acceptable  
• Safe to apply  
• Prevents flash corrosion on metal surfaces  
• Very stable in hard water  
• Forms a hydrophobic film  
• Will pass through a 1 micron filter  
• Nitrite-free and phosphate ester-free  
• Non-flammable  
• Passes ASTM D-4627-86 (Test Method for Iron Chip Corrosion for Water-soluble Metalworking Fluids) at 2.0% by weight  
• Usually can be added at any stage of production

Typical Applications

• Coolants  
• Primer coatings  
• Alkaline cleaners/detergents

Suggested Starting Concentrations

Short-term protection:
1 part concentrate to 50-60 parts solution. 

Long-term protection:
1 part concentrate to 40 parts solution.

For protection up to two years:
1 part concentrate to 20 parts solution.

Metals Protected

• Cast iron  
• Cast aluminum  
• Steel  
• Copper

Typical Properties

Packaging and Storage

M-370 is packaged in 5 gallon (19 liter) containers, 55 gallon (208 liter) drums, liquid totes and bulk. The product should be sealed and stored in a heated warehouse to avoid freezing. M-370 has a shelf life of 24 months.