Product Description

KoolKut EP II is a bio-stable multi-purpose environmentally friendly metal working fluid. It is free from nitrite, nonyl- phenol, boron and heavy metals. It is a concentrate that when added to water forms a stable milky emulsion. It contains emulsifiers, biocide corrosion inhibitors and lubricity improvers.
Biocide aids in the preservation of Koolkut EPII as it has a broad activity spectrum against bacteria, moulds
and yeasts that cause deterioration of water-based metal working fluids.

To produce an homogeneous emulsion KoolKut EP II should always be added slowly to water with agitation. DO NOT add water to the oil.


KoolKut EP II is recommended for various machining operations such as cutting, drilling, grinding, milling, reaming, tapping, etc. It can be used for both ferrous and non-ferrous metals.

Performance Benefits

  • Excellent corrosion protection
  • Good hard water stability
  • Excellent emulsion stability
  • Excellent foam control under soft water conditions.
  • Compatible with non-ferrous metals


For general machining requirements, a concentration of 1 part KoolKut EP II added to 20 parts of water (5%) will give good results on free machining requirements. A concentration stronger than 1 part oil / 10 parts water (10%) is seldom necessary as performance is not significantly improved beyond this level, while detrimental effects such as foaming can be created.


When used as a grinding fluid, KoolKut EP II should not be used at a weaker concentration than 1 part oil / 50 parts water (2%). Weaker concentrations can significantly reduce the protection against corrosion. Conversely, stronger concentrations may result in clogging of grinding wheels and glazing of the work piece.


205 litre drum, 20 litre cube, 5 litre pack, 1 litre pack

General Recommendations for use

Process Parts Water : Parts Oil
Machining Mild Steel and Brass 20:1
Medium Steels 15:1
Aluminium 25:1
Grinding 50:1
Rolling (suggested as a starting point) 10:1



Safety Data Sheet – Koolkut EPII (20 Sept 2022)