Interview MedtecLIVE 2024

PROLAST-O® — High performance FFPM seals

In specific application areas with agressive media and high temperatures, standard elastomers like NBR, Viton® or EPDM cannot stand up to the requirements anymore. KUBO produces seals made of FFPM/FFKM Prolast-O® for the highest requirements on its own premises in Effretikon, near Zurich.

In specific application areas with agressive media and high temperatures, standard elastomers like NBR, Viton® or EPDM cannot stand up to the requirements any more. 

Perfluorelastomers are  top-class materials. They are extremely resistant against acids, amines, bases, ultra-pure de-ionized water, vapour, solvents and detergents. Even at high temperatures, seals made of Prolast-O® remain operational and therefore prolong the maintenance intervals and increase safety. 

With our many years of experience and our vast stock of tools we can produce the required seal within a short time. 

WHY CHOSE PROLAST-O® ?

  • Fast delivery (2-3 weeks, in case of existing tools)
  • Own tool construction and production of moulds in Effretikon
  • Vast stock of tools (particularly for standard dimensions)
  • Longstanding experience
  • Quality assurance with automatic optical measurement of O-rings
  • Highest chemical resistance
  • Food and pharma conformities
  • Highest temperature resistance
  • Low compression set
  • Small quantities starting from 1 piece 

PROLAST-O® PRODUCTS

O-rings and other moulded parts: 

  • Micro O-rings and micro parts
    • Interior diameter > 0.5 mm
    • Cross section diameter > 0.5 mm
  • Maximum size of O-rings/moulded parts Ø 500 mm
  • Smaller or bigger dimensions upon specific customer request
  • O-rings with larger interior diameters can be butt joint vulcanized from cords upon request. Our premium product for large O-rings are our Gigant-O®
  • Delivery time 2-3 weeks, in case of existing tools

COMPOUNDS

Four different FFPM compounds are available as a standard

  • Standard compound black (20-75-0004)
    • Temperature – 35 to +215 °C (temperature peak of short duration 230 °C)
    • FDA conformity, ADI-free
    • Data sheet
  • Standard compound white (20-70-0012)
    • Temperature – 35 to +215 °C (temperature peak of short duration 230 °C)
    • FDA conformity, EU No. 1935/2004 andEU No. 2020/784
    • Data sheet
  • High-temperature compound black (20-75-0043)
    • Temperature -15 to +320 °C
    • Data sheet
  • Medical compound white (20-70-0017)
    • Temperature -20 to +260 °C
    • FDA conformity, USP Class VI, EU No., 1935/2004, ADI-free, 3-A Sanitary
    • Data sheet

Other compounds upon specific request.

TYPICAL APPLICATIONS

Prolast-O®  compounds are applied in critical sealing applications

  • Food processing plants
  • Production of pharmacauticals
  • Biomedical devices
  • Pumps
  • Valves
  • Pipe couplings
  • Mechanical seals

Kubo is your partner for FFPM sealing solutions. Decades of experience and profound expertise enable us to help you find the right solution for your application.  

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