Description
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 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.
- 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 bucket
- Available in 180g can, 1kg can, 10kg bucket
Your benefits at a glance
- Compatibility with plastics and elastomers, e.g. EPDM or silicone elastomers
- Low friction forces in plastic/plastic and elastomer/metal combinations
- Good resistance to water
- Slower ageing of elastomers exposed to sunlight
Application
- 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.
Application notes
- Seals 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 data
| Article number | 090020 |
| 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 |
KLÜBER LUBRICATION MÜNCHEN GMBH & CO. KG, Geisenhausenerstraße 7, 81379 München, GERMANY, +49 89 7876 0, [email protected], www.klueber.com
Fabio –
Highly recommended. Simple and convenient.
jannis88 –
Easy to assemble. Great purchase. Works great. Top product, would definitely recommend.
Ella Y. –
Excellent product, worth every cent. No unpleasant smell, which I really appreciate. Pleasant to use at home. A friend recommended it to me and I’m thrilled with the purchase.
ryan_lee –
Recommended. Quality is excellent. Solid product, would buy again. Exactly as described.
Florian J. –
Recommended. Excellent quality.
Chiara –
Perfect for my needs; I’m very satisfied.
johanna88 –
This solved my problem completely! Easy to use, without making a mess.
Vincent W. –
Excellent quality. Arrived on time. Perfect for what I needed. Simple and convenient.
gabriele_it –
Punctual service. Everything as expected. Top seller. Feels durable and well built.
luis88 –
Great purchase. Excellent-quality product. Fast delivery, good workmanship. Works flawlessly.
emil_x –
Super value for the money. Fast and courteous service.
Lotta –
I was skeptical, but now I’ll order regularly. No unpleasant smell; I really like that. Very effective; noticed a change after just one week. Really noticed a difference after using it!
Evan –
Very good build quality. Everything’s great.
Daniela G. –
Surprisingly good quality for the price. I noticed a difference after a short time!