Klüber BARRIERTA L 25 DL Special lubricating grease 10kg

BARRIERTA L 25 DL is based on perfluorinated polyether oil and PTFE and thus resistant to many media such as water or hydrocarbons.Do you need to attain low friction coefficients in elastomer/metal or plastic/plastic friction points over a long time and across a wide temperature range? BARRIERTA L 25 DL can help you keep friction low even at temperatures of -25°C, especially when lubricating door seals, for example in train doors. This willenable you to meet requirements for low pressure variations in trains going through tunnels and constant actuating forces for doors over a wide temperature range.Do your customers expect a long service life of seals, even if they are frequently exposed to direct sunlight? BARRIERTA L 25 DL absorbs some of the sunlight’s UV radiation, keeping the seal pliant for longer.Do you need a lubricant that is compatible with sensitive materials? Field experience has shown the product’s good compatibility with many sensitive plastic materials such as PC, or with elastomers such as EPDM.Do you have optical applications requiring a lubricant that does not form a condensate on lenses? With the low vapour pressure of its base oil, BARRIERTA L 25 DL offers what it takes to prevent the formation of condensates.Size: 10kg bucketAvailable in 180g can, 1kg can, 10kg bucketYour benefits at a glanceCompatibility with plastics and elastomers, e.g. EPDM or silicone elastomersLow friction forces in plastic/plastic and elastomer/metal combinationsGood resistance to waterSlower ageing of elastomers exposed to sunlightApplicationBARRIERTA L 25 DL is preferably used for lubricating seals in train doors. It has also been used as a special lubricant for optical equipment for many years.Application notesSeals in train doors should be free from impurities prior to initial lubrication.For use in precision optics, we recommend cleaning the friction point prior to initial application first with white spirit 180/210 and then with Klüberalfa XZ 3-1.Then blow the surfaces with clean, dry compressed air or hot air to remove solvent residues. For initial lubrication, the friction points must be clean and bright,i.e. free from oil, grease, perspiration and contamination. To optimise lubricant life, please contact our Technical Sales staff.Product dataArticle number090020 Chemical composition, solid lubricant PTFE Chemical composition, type of oil PFPE Lower service temperature -40°C / -40°F Upper service temperature 150 °C / 302 °F Color space white Density at 20 °C approx. 1.95 g/cm³ Worked penetration, DIN ISO 2137, 25 °C, lower limit value 270 x 0.1 mm Worked penetration, DIN ISO 2137, 25 °C, upper limit value 300 x 0.1 mm Shear viscosity at 25 °C, shear rate 300 s-1; equipment:rotational viscometer approx. 4 000 mPas Kinematic viscosity, DIN 51562 pt. 01/ASTM D-445/ASTM D 7042, 100 °C approx. 11 mm²/s Kinematic viscosity of the base oil, DIN 51562 pt. 01/ASTM D-445/ASTM D 7042, 40 °C approx. 90 mm²/s Flow pressure of lubricating greases, DIN 51805, test temperature: -40°C <= 1 400 mbar Water resistance, DIN 51807 pt. 01, 3h/90 °C, rating 0 - 90 Minimum shelf life from the date of manufacture in a dry, frostfree place and in the unopened original container, approx. 60 months