Tecnoflon® PL 557 is a new generation low temperature peroxide curable fluoroelastomer with 65.5% wt fluorine content. Tecnoflon® PL 557 exhibits excellent low temperature flexibility (TR10 = –29°C), close to Tecnoflon® PL 455, but with improved chemical resistance and permeability. Like all other Tecnoflon® peroxide curable grades, it exhibits excellent processability; moreover it needs very short post-curing cycles. 
Some of the basic properties of Tecnoflon® PL 557 are: 
- Excellent low temperature flexibility 
- Low post cure 
- Superior mold flow 
- Lack of mold fouling 
- Excellent mold release 
Tecnoflon® PL 557 can be used for injection, injectioncompression and transfer molding of O-rings, gaskets and seals. Tecnoflon® PL 557 can be combined with the cure system and other typical fluoroelastomer compounding ingredients. Mixing can be accomplished with two roll mills or internal mixers. Tecnoflon® PL 557 can be extruded into hoses or profiles and can be calendered to make sheet stocks or belting. 


  • Global Business Unit
    Specialty Polymers
  • Brand
  • Synonyms



Segments Applications
Chemical Industry Chemical Engineering
Industrial Equipment Industrial Equipment Parts | Pipes, Pumps, Fittings & Valves
Segments Applications
Green & Clean Technologies Emission Reductions
Powertrain Efficiency Engine Management Systems | Oil & Fuel Circuit | Transmission Parts
Lightweighting Mechanical Components
Segments Applications
High Speed Train Powertrain efficiency
Segments Applications
Electrical, Air & Fluid Systems Fluid systems (water, jet fuel, hydraulic liquid)

Chemical categories

Chemical category Chemical family Chemical product
Specialty Polymers Fluorinated Elastomers FKM (Fluoroelastomer)

Region of commercial availability

  • Europe / Middle East / Africa
  • North America

Not available in Middle East/Africa

Download documentation for Tecnoflon® PL 557