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Fluoropolymers Comparison

MATERIAL   DESCRIPTION
PTFE
Poly-tetra-
fluoro-ethylene
 
  • PTFE is also sold under the brand names Teflon and Dyneon
PFA
Perfluoroalkoxy-copolymer
 
  • Similar to properties to FEP
  • Higher melting point
  • Improved mechanical properties at higher service temperature compared to FEP
  • PFA is also sold under the brand names Teflon and Dyneon
FEP
Fluorinated
Ethylene-Propylene
 
  • Mechanical properties similar to PTFE
  • Same electrical and chemical properties as PTFE
  • Has higher tensile and impact strength than PTFE
  • Harder and has better clarity vs PTFE
  • Slightly lower coefficient of friction than PTFE
  • Lower service temperature compared to PTFE
PCTFE
Poly-chloro-
trifluoro-ethylene
 
  • Higher tensile strength and improved clarity vs PTFE
  • Has a lower softening point than PTFE
  • Less chemical resistance compared to PTFE
  • Lower electrical insulation vs PTFE
  • PCTFE is also sold under the brand name Neoflon
ECTFE
CTFE/Ethylene copolymer
 
  • Low creep and impact strength
  • Behaves more like nylon than any of the fluoropolymers
  • ECTFE is also sold under the brand name Halar
ETFE
TFE/Ethylene copolymer
 
  • Similar properties to FEP
  • Enhanced abrasion and impact properties vs FEP
  • Lower service temperature than FEP
  • ETFE is also sold under the brand name Tefzel
PVDF
Poly-vinylidene copolymer
 
  • Good properties at a relatively low price
  • Good tensile and impact strength
  • Generally good chemical resistance
  • Sacrificed dielectric properties
  • PVDF is also sold under the brand name Kynar
PVF
Poly-vinyl-fluoride
 
  • Similar properties to PVC with better heat stability
  • PVF is also sold under the brand name Teflon
Material Selection
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