Klüberalfa GR Y VAC 2 Special greases for vacuum applications 1 kg

Klüberalfa GR Y VAC 2 – Special greases for vacuum applicationsDescriptionKlüberalfa GR Y VAC greases are white, homogeneous longterm greases based on perfluorinated polyether (PFPE) oils and polytetrafluoroethylene (PTFE) thickener. Besides their good resistance to high temperature and aggressive media, Klüberalfa GR Y VAC greases show low evaporation under vacuum conditions. Klüberalfa GR Y VAC greases are made in three different NLGI classes, allowing component-specific selection for lifetime lubrication.Benefits for your applicationLow evaporation under vacuum conditionsHigh thermal stabilityGood resistance to aggressive mediaNeutral towards plastic materialsApplicationKlüberalfa GR Y VAC are preferred greases for applications under vacuum, e.g. in components of the electro-mechanical industry.Behaviour towards elastomers and plastics Lubricants based on perfluorinated polyether oils and polytetrafluoroethylene are generally regarded as neutral towards most elastomers and plastics (exception: perfluorinated rubber). Nevertheless we recommend testing compatibility with the material to be used, especially prior to series application.Technical specificationsProduct dataKlüberalfa GR Y VAC 1Klüberalfa GR Y VAC 2Klüberalfa GR Y VAC 3Article number901889018990190NLGI grade, DIN 51818 23Chemical composition, type of oilPFPEPFPEPFPEChemical composition, solid lubricantPTFEPTFEPTFELower service temperature-20 °C / -4 °F-20 °C / -4 °F-20 °C / -4 °FUpper service temperature250 °C / 482 °F250 °C / 482 °F250 °C / 482 °FColour spacewhitewhitewhiteTexturehomogeneoushomogeneoushomogeneousDensity at 20 °Capprox. 1.94 g/cm³approx. 1.9 g/cm³approx. 1.99 g/cm³Worked penetration, DIN ISO 2137, 25 °C,lower limit value310 x 0.1 mm265 x 0.1 mm220 x 0.1 mmWorked penetration, DIN ISO 2137, 25 °C,upper limit value340 x 0.1 mm295 x 0.1 mm250 x 0.1 mmOil separation, based on ASTM D 6184 [FTMS 791 C 321],after 30 h/200 °C<= 14 % by weight<= 12 % by weight<= 10 % by weightEvaporation loss, ASTM D 2595 22h/204°C<= 1 % by weight<= 1 % by weight<= 1 % by weightMinimum shelf life from the date of manufacture - in a dry, frostfreeplace and in the unopened original container, approx.60 months60 months60 months Information on product safety (Manufacturer, Contact)KLÜBER LUBRICATION MÜNCHEN GMBH & CO. KG, Geisenhausenerstraße 7, 81379 München, GERMANY, +49 89 7876 0, , www.klueber.com