FEP (fluorinated ethylene propylene)

PTFE and FEP are similar in their material properties. The main difference between PTFE and FEP lies in the maximum operating temperature and the colour. PTFE is milky/white and FEP is clear transparent.

Key properties

• Lower melting temperature than PTFE
• More flexible than PTFE
• Transparent/clear
• Low dielectric constant (insulating)
• Chemically inert
• Very low co-efficient of friction
• Antistick properties
• UV resistant (does not age)
• Not hygroscopic (water absorption <0.01%)
• FDA approved
• Working temperature from -200°C to +205°C


FEP tubing
• FEP gas sampling bags
FEP heat shrink tubing
• FEP bellows
• FEP welding liners
• FEP film/foil
• Coating with FEP

Technical information

FEP is typically used in applications where clarity is required (soil analysis/sight glasses, etc.).
Additional information about the properties of FEP can be found under the technical data sheets.

More information?

Please contact our sales engineers if you require more information, an inquiry or to evaluate samples. Or download our technical data sheets.

Datasheet General properties FEP


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