Zubora 57 H Plus
Art-Nr.: 32020- semi-synthetic, water-miscible high-performance cooling lubricant
- on the basis of mineral oil
- free of boron
- free of formaldehyde releasers
- long-term stable
- excellent corrosion protection
- REACH-compliant substances
- resistance of plastics as well as of paints and coatings according to VDI 3035
As the product does not contain any secondary amines, there is no risk of formation of nitrosamines according to the current state of knowledge.
As Zubora 57 H Plus is inhibited against the formation of nitrosamines no stable nitrosamines can be formed, even if there are any secondary amines and nitrites (e. g. due to external carry-over). Therefore, in case of exceeding the limit value for nitrite according to TRGS 611, it is not necessary to change the emulsion partially or completely.
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Product Details
| Density/20°C / DIN EN ISO 12185 | 970 kg/m³ |
| Viscosity/20°C / ASTM D 7042 | 157 mm²/s |
| pH-value (5 % in H2O) / DIN 51 369 | 9.6 |
| Cast iron chips test (1:20) / DIN 51 360/T2 | Corrosion degree 0 |
| Mineral oil content | 30 % |
| Water hazard class, concentrate | 2 |
| Water hazard class, emulsion | ( |
| Correction factor for determination of the concentration - refractometer | 1.5 |
Zubora 57 H Plus can be used for cutting operations up to medium difficulty. Furthermore, it is well suited
for grinding. Due to the special formulation Zubora 57 H Plus is particularly long-term stable.
It is suitable for machining of many materials from normal to hardened steel grades, aluminium or cast iron materials.
Zubora 57 H Plus is designed for use in hard water and shows special foaming characteristics with prepared water quality of more than 12° dH.
Recommended hardness of the preparation water:
12 to 24° dH (210 - 430 ppm CaCO3).
Cutting operations 5 - 8 %
Grinding 4 - 5 %