Kluberalpha GR ZNF High Vacuum Grease, PTFE, 100 gm

Kluberalpha GR ZNF High Vacuum Grease, PTFE, 100 gm
Kluberalpha GR ZNF High Vacuum Grease, PTFE, 100 gm
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Klüberalfa GR ZNF is a white, odorless grease based on a perfluorinated polyether (PFPE) oil and a polytetrafluoroethylene (PTFE) thickener. The high viscosity index allows consistent sliding friction properties across a wide service temperature range. Additionally, the product shows an exceptionally good evaporation stability.

Klüberalfa GR ZNF is suggested for applications under vacuum conditions or strong temperature fluctuations. Applications include cleanroom equipment, semiconductor or automation technology as well as in the aerospace industry. Klüberalfa GR ZNF shows good sliding friction behavior, performing well in linear guides, rolling and plain bearings and seals.
While lubricants based on fluorinated polyether oils and polytetrafluoroethylene are typically do not react with most elastomers and plastics (exception: perfluorinated rubber), we suggest testing compatibility with the material to be used, especially prior to series application.


Product Name Klüberalfa GR ZNF
Chemical composition, type of oil PFPE
Chemical composition, solid lubricant PFPE
Service temperature range -60°C / -76°F to 200°C / 392°F
NLGI grade 3
Color White
Worked penetration, DIN ISO 2137, 25°C, Lower/upper limit value 220 x 0.1 mm /250 x 0.1 mm
Kinematic viscosity of the base oil, DIN 51562 pt. 01/ASTM D-445/ASTM D 7042, 40°C 40 mm2/s (approximate)
Oil separation, based on ASTM D 6184, 30 h/200 °C <= 9 % by weight
Evaporation loss, ASTM D 2595 22h/204°C <= 2 % by weight
Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. 60 months