ETFE Properties

Teflon Properties from Tef Cap

Ethylene Tetrafluoroethylene

PropertiesUnits / ASTMETFE
MECHANICAL PROPERTIES
Specific GravityD7921.74
Elongation %D638420 - 460
Tensile Strength (psi)D6386,100 - 6,800
Flexural Strength (psi)D7905,500
Compressive StrengthD6952,500
Tensile Elastic Modulus (Young's Modulus) (psi)D63885,000 - 95,000
Flexural Modulus 103MPa (103kgf/cm2)D790128,000 - 171,000
Flex Life (MIT cycles)D217610,000 - 27,000
Hardness Durometer Shore DD636D75
Coefficient of Friction on steel.06
Abrasion Resistance 1000 revs.TaberN/A
Impact Strength IZOD 73°F/23°C, notched ft/lbs/inD256No Break
THERMAL PROPERTIES
Melting Point°F512
Upper Service Temperature (20,000h)°F302
Flame RatingUL 94V-O
Thermal ConductivityBTU/hr/ft2/deg °F in1.65
Linear Coefficient of Thermal ExpansionD69613
Heat of FusionBTU/LB20
Heat of CombustionBTU/LB8,100
Low Temperature Embrittlement°F-148
ELECTRICAL PROPERTIES
Dielectric ConstantD150/103Hz ( 106Hz )2.6
Dielectric Strength 10 mil filmD1491,600
Volume Resistivity ohm-cmD257>10^16
Surface Resistivity ohm/sq.D257>10^15
GENERAL PROPERTIES
Chemical/Solvent ResistanceD543Excellent
Water Absorption, 24hr / %<.03
Deformation Under LoadD621/110°C5.4
Refractive Index1.40
Limiting Oxygen Index %>9531