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Ecocool 4391


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Soluble oil for general machining

Soluble oil for all types of shop operations, including cutting, grinding, reaming, tapping, boring, broaching, threading, sawing, stamping and drawing. Ecocool 4391 - a heavy duty soluble oil is designed for multi-purpose use on all types of metals.

Benefits of using Ecocool 4391

  • Increased tool life 

  • Versatile 

  • Stable in hard water 

  • Excellent long-time stability
Application:

Recommended starting concentrations:


OperationCarbon steels & cast ironHigh alloy steel & stainless steelTool steel & cast steelAluminium
General machining3.5-4%5%4%3.5-4%
Reaming, Tapping, Broaching6%10%10%5-7%


Typical Physical & Chemical Characteristics

PropertiesUnitValueNorm Test
Density at 15 °CKg/l0.999ASTM D 1298
Colour Blue / Green 
Viscosity at 20 °C mm²/s354ASTM D 445
Viscosity at 40 °Cmm²/s90ASTM D 445
pH-value of the emulsion / DIN water / 10% 8.9DIN 51 369
pH-value of the emulsion / DIN water / 5% 8.8DIN 51 369
Corrosion Test (chip/filter test) / 5% 0 - 0 IP 287
Foam Test (water hardness 3 °d) / 5%minutes300/300 AFNOR D65-5212
Foam Test (water hardness 15 °d) / 5%minutes300/300AFNOR D65-5212
Reserve Alkalinity up to pH = 7 ml 0.1 n HCl 30FLP*
Reichert wear test / DIN water / 5%mm²18.9FLP*
Refractometer / Fluid Tester factor 1.1FLP*


FLP* = FUCHS Laboratory Procedure



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