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Precix P03 FFKM

Precix P03 perfluoroelastomer (FFKM) is a peroxide-cured FFKM designed for use in AMS 7257D aerospace applications as well as in chemical processing and applications requiring excellent thermal resistance. Other FFKM formulations are in the works or can be made to your specification – if you would like to learn more, submit an RFQ or a request for a specific FFKM product click here.  

Curing Chemistry Peroxide
Color Black
Target Specification AMS 7257D (Lab Report) (Product Profile)
Temperature Range -15 to 300º C (5º  to 572º F)
  • Aerospace/Engine
  • Mechanical Seals
  • Valves
  • Pump Housings
  • Reactors
  • Compressors
  • Metering Equipment
  • Mixers
  • Sprayers/dispensers
  • Couplings
Competes with:
  • Kalrez® 4079*/ 6375 / 7075
  • Parker V8545-75
  • Chemraz® 505, 555, 615
  • Simriz Z7257, 481, 485, 487, 498
  • PFE® 131TX (from DyneonTM) 


Kalrez® 4079 is Trianzinic cured (like Chemraz® 653), which gives you a top end of roughly 316º C.  Negative to this cure system is presented below.  If the 300 top end is enough for your application, P03 does interchange to 4079.

Chemical Peroxide Bisphenol Trianzinic
Alkali Excellent Good Poor
Amines Excellent Good Poor
Hot water / Steam Excellent Good Poor
Kebone Excellent Excellent Excellent
Solvents Excellent Excellent Excellent
Esters / Ethers Excellent Excellent Excellent
Acids Good Poor Excellent

Legend: Magenta: Precix P03 Yellow: Competitive product Download PDF

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