Cortec M-251 Additive to Synthetic Cutting Fluids
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Product Description
M-251 is an environmentally friendly , low foaming water soluble corrosion inhibiting additive for synthetic cutting fluids. It provides corrosion protection to carbon steel, copper, galvanized steel, and other ferrous and non-ferrous metals and their alloys. M-251 provides both contact and vapor phases corrosion potection during and after operation.
M-251 is compatible with most water-based lubricants and with a range of biocides. It is compatible with sea water, which allows the use of this additive in off-shore conditions.
Packaging & Storage
M-251 is available in 5 gallon (19 L) plastic pails and 55 gallon (208 L).
To ensure best product performance, store in original packaging, indoors, and out of direct sunlight at 40-100 °F (4-38 °C).
Shelf life: 2 years
Features
- Stable in aqueous systems with a pH of 6 or above
- Can be used with fresh and salt water
- Soluble in water, glycol, and alcohols
- Non-phenolic
- Biodegradable
- Non-hazardous, environmentally friendly
- UFI: P940-5052-M00F-RX0F
Typical Properties
| Appearance | Clear Yellow/Amber Liquid | |
| pH | 8-9 (1% solution in water) | |
| Density | 8.5-8.7 lb/gal (1.02-1.03 kg/L) | |
| Non-Volatile Content | 50-60% | |
| Cast Iron Chip Test ASTM D-4627 (1% concentration) | Pass | |
| Immersion Test ASTM G 31 | Fresh Water | (0.5%) Pass |
| Salt Water | (5%) Pass | |
Typical Application
As an additive to synthetic cutting fluids M-251 should be added in the following concentrations:
- Operation and short term (up to 30 days) protection after the operation - 0.75- 1.0%
- Operation and longer term (up to 90 days) protection after the operation - 1-5%
- Operation with salt water - 2.5-5%
- Operation with salt water and short term of protection after the operation - 5-10%
Other applications
- Water-based lubricants
- Alkaline metal cleaners
- Water-based drilling muds
- Water-based hydraulic fluids