Because of our extensive expertise in material development, we have created a library of custom blends. These unique materials provide distinctive characteristics to meet specific requirements for the products we manufacture.

Hythane® TPU

Our suite of Hythane® TPUs, thermoplastic polyurethanes, is one of the most recognized in the industry.

Application uses

Typically used in dynamic sealing elements, our Hythane® materials are well proven in a wide range of hydraulic cylinder applications.

Hallite products manufactured in Hythane® materials include:

  • Rod seals
  • Piston seals
  • Piston seal elements
  • Wipers and scrapers
  • Static seals

Benefits

  • Well proven in wide range of hydraulic cylinder applications
  • Outstanding wear resistance
  • Good resistance to permanent set
  • Good extrusion resistance
  • Operates in wide range of temperatures

Characteristics and special features of Hythane® TPU materials

  • Hythane® 181 – Blue
    Good general purpose hydraulic and pneumatic sealing material and well proven in low temperature environments and in high water-based fluids, as well as standard hydraulic mineral oil-based fluids
  • The standard material for a wide variety of Hallite products such as 80, 601,605, 606, 607, 609, 610, 616, 620, 621, 622, 652, 653, 657, 658, 659, 660,661, 663, 667, 668, 800, 834, 839, 839N, 842, 846, 851, 853
  • Hythane® 221 – Black
    Used in the single-acting rod and piston seals inch range of Hallite’s 500 series – 511, 512, 513 – available in North America
  • Hythane® 251 – Dark blue
    Typically used in wipers used in Hallite 520, 521, 820, 831
  • Hythane® 321 – Dark blue
    Typically used in wipers used in Hallite 860 and 862 metal-cased, or press-fit, wipers
  • Hythane® 361 – Orange
    Alternate material to Hallite Hythane® 181 for higher temperature applications. Used a wide range of products including in single-acting piston seals in poorer finished tubes, piston seal elements, and wipers
  • Standard material in Hallite 764, 775, 844, 864
  • Hythane® 371 – Dark green
    Hard material used in wiper and scraper applications, such as Hallite 847
  • Hythane® 441 – Grey
    Special material option for rod seals
  • Hythane® 591 – Orange
    Special material option for rod seals, especially the Hallite 673