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Chemours 100 FEP Fluorinated Ethylene Propylene  (discontinued **)
Categories: Polymer; Thermoplastic; Fluoropolymer; Fluorinated Ethylene Propylene (FEP)
Material Notes: DuPont FEP meets the ASTM specification for FEP - Fluorocarbon Molding and Extrusion Materials under ASTM Designation D2116-95a. Has excellent chemical resistance, superior electrical properties, high service temperatures, outstanding low temperature toughness and unique flame resistance. Processed by conventional melt-extrusion and molding techniques. Resin Characteristics: General purpose; highest melt flow rate of the 100 series. Uses: Industrial and medical tubing; injection- or blow-molded articles.

Chemours was formed from former DuPont performance chemicals businesses, including DuPont Fluoroproducts, in 2015. This specific product was discontinued prior to the formation of Chemours.
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Physical PropertiesOriginal ValueComments
Specific Gravity 2.15 g/ccASTM D762
Water Absorption <= 0.010 %24 hours; ASTM D570
Melt Flow 6.6 g/10 minASTM D2116
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 25
Hardness, Shore A 96
Hardness, Shore D 56ASTM D2240
Tensile Strength, Ultimate 27.0 MPaASTM D1708
Elongation at Break 340 %ASTM D1708
Flexural Modulus 0.586 GPaASTM D790
Compressive Yield Strength 15.2 MPa
@Strain 5.0 %		ASTM D695
Poissons Ratio 0.36
@Temperature 100 °C
 0.48
@Temperature 23.0 °C
Fatigue Strength 9.70 MPa
@# of Cycles 7.00e+6
Izod Impact, Notched NBASTM D256
 NB
@Temperature -60.0 °C		ASTM D256
Coefficient of Friction 0.080 - 0.30ASTM D1894
Coefficient of Friction, Dynamic 0.44200 to 500 ft/min; 1 psi
Coefficient of Friction, Static 0.26100 psi
 0.3010 psi
 0.341 psi
K (wear) Factor >= 5000 x 10-10 in³-min/ft-lb-hrDry; vs. soft carbon steel
Limiting Pressure Velocity 600 psi-ft/min10 ft/min
 800 psi-ft/min100 ft/min
 1000 psi-ft/min1000 ft/min
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+18 ohm-cmASTM D257
Surface Resistivity per Square >= 1.00e+16 ohmASTM D257
Dielectric Constant 2.04
@Frequency 1.30e+10 Hz		ASTM D1531
 2.06
@Frequency 1e+6 Hz		ASTM D1531
Dielectric Strength 78.7 kV/mm10 mil film; ASTM D149
 21.0 kV/mm
@Thickness 3.18 mm		ASTM D149
Dissipation Factor 0.000060
@Frequency 1000 Hz		ASTM D1531
 0.00030
@Frequency 100000 Hz		ASTM D1531
 0.00060
@Frequency 1e+6 Hz		ASTM D1531
 0.00070
@Frequency 1.30e+10 Hz		ASTM D1531
 0.0011
@Frequency 1e+9 Hz		ASTM D1531
Arc Resistance >= 300 secASTM D495
 
Thermal PropertiesOriginal ValueComments
Heat of Fusion 10.1 J/gDSC; ASTM D3417
CTE, linear 135 µm/m-°C
@Temperature 0.000 - 100 °C		ASTM E831
 208 µm/m-°C
@Temperature 100 - 150 °C		ASTM E831
 266 µm/m-°C
@Temperature 150 - 200 °C		ASTM E831
Specific Heat Capacity 0.240 BTU/lb-°F
@Temperature 25.0 °C		DSC
 0.266 BTU/lb-°F
@Temperature 100 °C		DSC
 0.288 BTU/lb-°F
@Temperature 150 °C		DSC
Thermal Conductivity 0.160 - 0.240 W/m-K
Melting Point 264 °CASTM DTA-E168
Maximum Service Temperature, Air 204 °C
Deflection Temperature at 0.46 MPa (66 psi) 77.0 °CASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 48.0 °CASTM D648
Flammability, UL94 V-0
Oxygen Index >= 95 %ASTM D2863
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.341 - 1.347
Transmission, Visible 96 %thin film; solar transmission
IR Transmittance 95 %thin film; 0.70 to 3.5 µm
 
Processing PropertiesOriginal ValueComments
Processing Temperature 360 - 385 °CCure Temperature
 
Descriptive Properties
20% Hydrochloric Acid Transmission, g/100sq in.<0.02
50% Sodium Hydroxide Transmission, g/100sq in.<.02
Acetic Acid Transmission, g/100sq in.0.41
Acetone Transmission, g/100sq in.0.95
Acetophenone Transmission, g/100sq in.0.5
Benzene Transmission, g/100sq in.0.64
Carbon Tetrachloride Transmission, g/100sq in.0.31
Chemical/Solvent ResistanceExcellent
Detergent Resist. on grit-blasted aluminum, Hours600
Detergent Resistance on aluminum, Hours744
Detergent Resistance on grit-blasted steel, Hours480
Ethyl Acetate Transmission, g/100sq in.0.76
Folding Endurance, # cycles, .18-.20 mm5-80 E3
Heat of Combustion J/g5100ASTM D240
Hexane Transmission, g/100sq in.0.56
Piperidine Transmission, g/100sq in.0.04
Red Fuming Nitric Acid Transmission, g/100sq in.7.5-1.4
Salt Spray Resistance on aluminum, Hours>744
Sulfuric Acid Transmission, g/100sq in.0.00001
Water Transmission, g/100sq in.0.4
Weather Resistance20Years unaffected in Florida Exposure

**
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