Soluble Coolants

Quaker Houghton Hocut 4940

Water soluble metalworking fluid


HOCUT 4940 is advanced, high lubricity, boron-free and formaldehyde-free emulsion technology giving very long sump-life.
A special additive package gives greatly enhanced machining performance compared to conventional products and is particularly effective on difficult aerospace materials including aluminium, nickel and titanium alloys.
This product holds the following approvals and conformities:

– Airbus 80T-30-4010 & AIMS 12-10-001 • conformance
– Alenia• conformance
– Boeing BAC 5008 cat 5&6 conformance
– Bombardier BAMS 569-001 class A, C, D approved
– Grob approved
– Messier Bugatti Dowty PCS 4001 I PCS 4002
– Motor Sich • approved
– Pratt Whitney (UTC) PWA 36604
– Rolls Royce • RRP 5900
– Safran / Snecma • 455-201-0-00 & PR 6300
– SAE Aeropsace ASTM F11 00/F945/F519/F483


HOC UT 4940 is recommended for heavy duty machining of a wide range of aerospace materials including aluminium alloys (series 2000 and 7000 in particular), high alloy steels and difficult aerospace materials such as titanium and nickel alloys.
The product is suitable for both centralised systems and single­sump machines while the advanced boron-free technology extends emulsion life without the need for regular biocide treatments.
The versatile formulation is designed to give low foam in soft water.

  • High lubricity: sophisticated package of mineral oil and polar additives extend tool-life
  • Very long sump-life: new HOC UT 4000 series emulsion technology extends intervals between clean outs
  • Very stable emulsion : fewer additive treatments and lower usage costs
  • Inhibits aluminium staining : can be used for sensitive alloys eg 7000 series
  • Very low foaming : ideal for the highest speeds and pressures in soft water
  • Excellent EHS profile : Boron, formaldehyde, chlorine and Phenol-free. Contains only TRGS 611 approved amines
  • Concentrate Appearance – Amber oil
  • Specific Gravity@ 20°c – 0.93
  • Refractometer Factor – 1.05
  • Emulsion Appearance  – Milky white
  • pH in Use  – 8.9-9.5

Medium duty machining 6-8 %

Heavy duty machining 8-10 %


Water soluble coolants are complemented by our full range of high quality, speciality production fluids including energy saving wash chemicals , low misting neat cutting oils, non­voe rust preventives and long life heat treatment fluids. Fluidcare services complete our value added portfolio with a range of expert services and equipment to help reduce costs and improve productivity. For more information, please contact your local Houghton representative.

Please refer to section 7 of Safety Data Sheets for handling and storage information, including product shelf life. Product should be stored under cover in clean, dry conditions and protected from frost Recommended storage temperature is usually between 5°C and 40°C unless otherwise specified. Use stock in delivery rotation.

Safety data sheets are available in accordance with Regulations (EC) No 1907 /2006 Annex II and (EC) No 1272/2008.

Quaker Houghton Lubricant Oil

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