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Color - blue

LT-Pur is a thermoplastic polyurethane elastomer (TPU), which has been modified to operate at low temperatures (to about -50°С) without loss of main physical and mechanical characteristics. Compared with Pur, LT-Pur has higher elasticity (better than silicone rubber MVQ).

Application

LT-Pur can be used in the same sphere of application as Pur, but at lower temperatures, primarily in cold climatic zones.

Resistance

Good resistance Average resistance Low resistance
Hydraulic fluids based on mineral oil Non-ethanol fuel Aromatic hydrocarbons (toulene, benzene)
Mineral oil and grease (modifying additives can cause the decrease) Biodegradable hydraulic oils (HEES, HETG) Ketones, methyl ethyl, glycols.
Water up to +40°С Fire-resistant hydraulic fluids Brake fluids based on glycol
Aliphatic hydrocarbons (propane, butane) Silicone oil and grease Fire-resistant hydraulic fluids HFC and HFD
Compressed Air up to 110°С - Hot water, steam, alkali, amines, acids and base.

Mainly used

  • Wipers
  • Piston seals
  • Rod seals
  • O-Rings
  • Rotor seals

LT-Pur Material Data Sheet

Properties Value Unit Standard
Hardness 95+/-3 Sh A DIN 53505
Hardness 48+/-3 Sh D DIN 53505
Density 1,18 g/cm³ DIN 53479 or DIN EN ISO 1183-1
Compression set - 40°C / 70 h, 10 % deformation 40 % DIN 53517 or DIN ISO 815-1
Compression set 70°C / 70 h, 10 % deformation 20 % DIN 53517 or DIN ISO 815-1
Glass temperature -42 °C  
100 % modulus ≥12 N/mm² DIN 53504
Rebound resilience 48 % DIN 53512
Tensile strength ≥48 N/mm² DIN 53504
Elongation at break ≥440 % DIN 53504
Tear strength 75 N/mm DIN 53515 or DIN ISO 34-1
Abrasion 14 mm³ DIN 53516
Min. service temperature -50 °C  
Max. service temperature +110 °C

All above established data results from random tests which were taken from the functioning production. All data was stated based on standard test-products in accordance with ISO, DIN and ASTM standards and can substantially not be extended to the completed seal. Our practical technical recommendation, either oral, written or through tests is given in conformity with our best knowledge. However, this data is to be regarded as non-obligatory advice, also taking into consideration any protective rights of a third party, and does not acquit you from making tests with our product in relation to its adaptability for the assigned process and intendment. Utilization, application and processing of the products befall completely outside of our control and are therefore solely your liability. As regards the responsibility, it will be limited to all damages in the value of the product which we delivered and you applied. Certainly, we do assure the immaculate quality of our products in concordance with our general sales and delivery conditions.

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