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barrierta l 25 dl

Homepage > products > kluber > barrierta l 25 dl
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  • chemicals and solvents
    • BARRIERTA L 25 DL
    BARRIERTA L 25 DL

    barrierta l 25 dl

    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 seals in train doors. This will enable you to meet requirements for low pressure variations in trains going through tunnels and constant actuating forces for doors over a wide temperature range.

    For train door seals, which might come into contact with passengers' clothes, BARRIERTA L 25 DL SPRAY is particularly beneficial because it can be applied in a very thin lubricant film. This helps prevent the contamination of passengers with lubricant while enabling any trapped pieces of clothes to be pulled free with a minimum of force.

    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.

    • BARRIERTA 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.
    • When using BARRIERTA L 25 DL SPRAY, you can apply a lubricant film of very low thickness. The application of BARRIERTA L 25 DL SPRAY to the seal is also particularly fast, enabling optimized processing times for each door seal.
    • Compatibility with plastics and elastomers, e.g. EPDM or silicone elastomers Low friction forces in plastic/plastic and elastomer/metal combinations,
    • Good water resistance,
    • Slower ageing of elastomers exposed to sunlight,
    • BARRIERTA L 25 DL SPRAY can be applied in particularly thin layers, requiring only a minimum of time.
    Characteristics BARRIERTA L 25 DL BARRIERTA L 25 DL SPRAY
    Article number 090020 081379
    Composition, solid lubricant PTFE PTFE
    Composition, type of oil PFPE PFPE
    Colour space white white
    Service temperature, lower limit -40 °C -40 °C
    Service temperature, upper limit  150 °C 150 °C
    Density, Klüber method: PN 024, 20°C approx. 1.95 g/cm³ approx. 1.95 g/cm³
    Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, lower limit 270 0.1 mm 270 0.1 mm
    Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, upper limit 300 0.1 mm 300 0.1 mm
    Shear viscosity, Klüber method: PN 008@DIN 53019-1, equipment: rotational viscometer, 25°C, 300 s⁻¹ approx. 4000 mPas approx. 4000 mPas
    Kinematic viscosity of the base oil, DIN EN ISO 3104 / DIN 51562-1 / ASTM D445 / ASTM D7042, 100°C approx. 11 mm²/s approx. 11 mm²/s
    Kinematic viscosity of the base oil, DIN EN ISO 3104 / DIN 51562-1 / ASTM D445 / ASTM D7042, 40°C approx. 90 mm²/s approx. 90 mm²/s
    Flow pressure, DIN 51805-2, -40°C ≤ 1400 mbar ≤ 1400 mbar
    Water resistance, DIN 51807-1, 3 h, 90°C 0 - 90 rating 0 - 90 rating
    Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. 60 months  24 months

     

    kluber-barrierta-l-25-dl.pdf