FEP, or fluorinated ethylene propylene, was developed as a melt processable version of PTFE. FEP has similar properties to PTFE but has a slightly lower working temperature up to +200°C. It’s widely used in thermoforming applications to produce custom shapes and profiles that cannot easily be made from paste extrusion fluoropolymers such as PTFE .

What are the properties of FEP?

FEP enjoys several unique properties which make it suitable for use in medical, chemical and electrical applications, among others. FEP possesses the following properties:

·        High working temperature of maximum +200°C

·        Very low working temperature of -200°C

·        Non-stick characteristics

·        Low friction surface

·        Very high resistance to chemicals and solvents

·        Very high electrical resistance

·        Bio-compatibility

What are the advantages and disadvantages of FEP?

In addition to enjoying the unique properties of fluoropolymers, FEP differentiates itself by possessing the following benefits:

·        Continuous working temperature of +200°C

·        Welding and re-moulding potential

·        Protection against harsh environment conditions

·        Insulation from electricity, heat, chemicals and solvents

·        Good permeability resistance

·        Excellent resistance to UVA & UVC

·        High purity grades available

·        High clarity

·        Can be extruded in continuous lengths

FEP has similar physical and chemical properties to PTFE and PFA and remains flexible at cryogenic temperatures.

The main disadvantage of FEP is that it is more expensive than PTFE.

What is FEP used for?

From medical tubing to heat exchangers, fluid transfer devices and food processing, FEP is widely used in applications that require a contamination prevention, excellent chemical resistance, non-stick properties and a wide working temperature range.

FEP heat shrink is ideal for temperature sensitive applications. It is routinely thermoformed to create closed end covers and can be safely shrunk over temperature sensitive materials without causing damage.

Here at Adtech, we are specialists in delivering innovative fluoropolymer solutions for your technical applications. Find out more about our Fluoroplastic Products.

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