FEP

Fluorinated Ethylene Propylene (FEP) is a copolymer of hexafluoropropylene and tetrafluoroethylene that shares PTFE’s chemical resistance and useful low friction properties, but is more easily formable.

The name Teflon^® is often mistaken to only refer to PTFE, but FEP and PFA also come under this title. FEP is softer, slightly more flexible, but does not withstand repetitive folding as well as PTFE. It also possesses an inferior coefficient of dynamic friction and slightly lower tensile strength. Fluorinated Ethylene Propylene stands out thermally from PTFE by its lower melting point of 260°C and is highly transparent and resistant to sunlight.

MATERIAL REFERENCE- FLUORINOID® FL304

DESCRIPTION- VIRGIN FEP

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Our semi-finished capacity and capability

Moulded tube up to 1200mm (47”) dia
Moulded rod up to 300mm (12”) dia
Extruded tube up to 100mm (3.5”) dia
Extruded rod up to 90mm (4”) dia
Moulded sheet up to 500mm x 500mm x 40mm (19.5” x 19.5” x 1.5”)

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Excellent Thermal Stability
Chemically inert to almost all chemicals and solvents
Retains its properties even after prolonged exposures to harsh chemical environments
FDA Approved
Non-stick quality unsurpassed by any plastic
High transparency with good transmittance of UV rays and visible rays up to 98%
Lowest refractive index of all plastics, providing low light reflection
Refractive index of water, virtually invisible in water
Non Porous
Excellent resistance to ozone, sunlight and weather
Inert to body tissue
Low dielectric constant and high dielectric strength
High Purity

Heat Exchangers
Medical Tubing
Valve & Chemical Equipment Lining
Tank and Pipe Lining
Fluid Transfer Devices
Sleeving items that require light transmission
Coatings
Valves
O-Rings, Back-up Rings and Seats

Properties	Value	Units	Method
Specific Gravity	2.1 to 2.3		D792-66 (1979)
Processing Temperature	320	^oC
Tensile Strength @ 23^oC	2100 to 3050 14.5 to 21	psi Mpa
Elongation @ 23^oC	240 to 300	%
Flexural Modulus @ 23^oC	No break at flexure		D 790
Coefficient of Friction	0.27 to 0.67		D1894
Impact Strength	No break
Hardness, Shore D
Dielectric Strength	13 to 100	kV/mm	D149
Melting Point	253 to 282	^oC
Upper Service Temperature (20,000h)	-250 to 200	^oC
Flame Rating	V0		UL94
Limiting Oxygen Index	95	% Oxygen	D 2863

The information in this table represents typical figures intended for reference and comparison purposes only.

We manufacture FEP semi-finished products including rod, tube and sheet by compression moulding and extrusion
We produce machine finished components for a range of industries including Medical, Aerospace, Semiconductor, Petrochem and Oil & Gas
We ensure the highest quality materials by mechanical property testing. All our materials are tested on site to International Standards so we can maintain a consistent quality product without impacting on lead times

What is FEP?

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