Moulded sealings

PU moulded sealings from Asma exhibit good temperature resistance, hydrolysis resistance, acid and alkali resistance in different Shore hardnesses


  • Moulded sealings made from PU are highly resistant to wear and, according to Shore hardness, can be moved and deformed in many ways.
  • High stress without a loss in density effect is possible
  • Suitable for the application in liquids as well as in gaseous environment
  • FDA-approval, resistance to temperature, resistance to hydrolysis, acid- and lye-proof


  • The flexible processing possibilities are an advantage
  • The sealing elements are considered independent since the operating pressure reinforces the sealing effect
  • They are often used for hydraulic and pneumatic components

Available at asma

  • Customized moulded parts or coating of carrier part
  • Hardness ranging from 25° to 95° Shore A
  • Single pieces to large-scale production
  • From very small parts to bigger sealings dependent on the contour
  • Internal mould construction allows for a flexibility in changing and adjusting
  • Production of the components using vacuum casting is possible
  • Making a choice, after careful selection, for the suitable PU type according to the field of application
  • (food industry, temperature, hydrolysis, contact with special acids and lyes, certain oils …)