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.
