Description :

Polyurethane oil seals can withstand excessive toughness, abrasion and extrusion under rough service condition, over a prolonged period of time, without tearing or decaying.
New polyurethane material curing by HQEE give an extremely high performance with low compression set and high rebound at high temperature. This new high performance characteristics and quality material enable to use for arduous and high pressure designs.
Large seals in diameters of 480mm (18.75 in.) to 2000mm (78 in.) are available by casting, even in very small quantities.
Small to medium seals under 480mm (18.75 in.) are available by injection, only in large quantities, unless the specifications you request are in stock.

Specification :

General use oil seal (CPL general curing): Physical properties (units): GS-592/ GS-595. 1. Hardness (shore A): 92 ±2/ 94 ±2. 2. Hardness (shore D): 40/ 44. 3. Density (g/cm3): 1.18/ 1.18. 4. Tensile strength (Kg/cm2): 470/ 510. 5. Elongation at break (%): 500/ 500. 6. 100% tensile modulus (g/cm3): 95/ 120. 7. Tear strength (die C) (K/cm): 140/ 150. 8. Abrasion loss (mg): 25/ 35. 9. Compression set at room temperature (%): 25/ 25. 10. Compression set at 70°C x 24 hrs (%): <35/ <35. 11. Rebound resilience (%): 50/ 40. 12. Freezing temperature (°C): -40/ -40. 13. Vicat softening temperatur (1Kg) (°C): 130/ 140. 14. 100°C x 70 hrs in ASTM oil＃1: change. 15. Hardness shore (A): -1/ -1. 16. Tensile strength (%): +5/ -4.3. 17. Volume (%): 0/ -0.3. 18. 100oC x 70 hrs in ASTM oil＃3. 19. Hardness shore (A): -2/ -2. 20. Tensile strength (%): +6/ -0.1. 21. Volume (%): +9/ +8. 22. In air 120°C day: 10, 20, 30, 40. 23. Tensile strength (%): -4, -2, -10, -10. 24. High performing use oil seal (HQEE curing). 25. Physical properties: HS 93. 26. Hardness shore A: 93 ± 2. 27. Hardness shore D: 43 ± 3. 28. Density (g/cm3): 1.2. 29. Tensile strength (Kg/cm2): 400. 30. Elongation at break (%): 500. 31. 100% tensile modulus (g/cm3): 120. 32. 300% tensile modulus (g/cm3): 220. 33. Tear strength (die C) (Kg/cm): 130 34. Abrasion loss (H-22, 1000mg, 1000 cycles) (mg): 23. 35. Compression set at room temperature (%): 22. 36. Compression set at 70oC x 24 hrs (%): < 25. 37. Compression set at 80oC x 70 hrs (%).