Zubora 20 H Extra FF coolant for aluminum and steel machining
- water-miscible highly efficient coolant
- based on mineral oil
- with a high content of AW polar additives
- long stable
- better machine cleanliness
- REACH compliant
- free of formaldehyde releasing agents
- Reacts to plastics, paints and coatings according to VDI 3035
- available packages: 20l, 60l and 200l
Through the use of primary amines, there is no risk of carcinogenic N-nitrosamines. In addition, ZUBORA 20 H Extra contains inhibitors that block the formation of nitrosamines, i.e. if secondary amines and nitrites appear (e.g. as a result of precipitation of foreign compounds), stable, carcinogenic N-nitrosamines will not be able to be formed. Exceeding the limit values of nitrite according to TRGS 611 does not require partial or complete replacement of the emulsion.
Density / 15°C / DIN EN ISO 12185
Viscosity / 20°C / ASTM D 7042
pH value (5% in H2O) / DIN 51 369
Test with cast iron chips (1:20) / DIN 51 360/T2
Corrosion degree 0
Mineral oil content
WGK – class, concentrate
WGK – class, emulsion
(<16,6 %) 1
Correction factor for determination of concentration – refractometer:
Thanks to the use of highly effective polar additives, AW Zubora 20 H Extra FF has a wide range of applications for the most demanding processes, both in steel and aluminum machining.
This product is perfect even for high-strength aluminum alloys with a high silicon content. Even difficult machining operations such as drilling deep holes, reaping, thread forming, etc. can be carried out without any problems. When machining aluminum alloys, very good surface properties are achieved.
Recommended hardness of water used:
12 to 24 °dH
difficult machining operations (e.g. reaping) - 8 – 10 %
medium machining operations (e.g. drilling, milling, turning - 5 – 7 %
Recommended storage temperature: from +5°C to max. +40°C.
The product works perfectly with deemulsifying oils for Divinol T guides.
If you need to increase corrosion protection, we recommend Zeller & Gmelin anti-corrosion agents.
If you have any questions, please do not contact us.
This information corresponds to the state of our current knowledge. They do not exempt users from self-checks. From our information, it is not possible to derive a legally binding assurance of certain characteristics or suitability for use for a specific purpose. The recipients of our products should comply with any applicable laws and regulations that apply to the use and handling of our products on their own.