PFA Properties

Teflon Properties from Tef Cap

Perfluoroalkoxy

PropertiesUnits / ASTMPFA
MECHANICAL PROPERTIES
Specific GravityD7922.15
Elongation %D638280 - 400
Tensile Strength (psi)D6384,000 - 4,500
Flexural Strength (psi)D790No Break
Compressive StrengthD695710 - 860
Tensile Elastic Modulus (Young's Modulus) (psi)D63872,500 - 87,000
Flexural Modulus 103MPa (103kgf/cm2)D79094,000 - 99,000
Flex Life (MIT cycles)D217610,000 - 500,000
Hardness Durometer Shore DD636D55- 60
Coefficient of Friction on steel.2
Abrasion Resistance 1000 revs.Taber9 - 17
Impact Strength IZOD 73°F/23°C, notched ft/lbs/inD256No Break
THERMAL PROPERTIES
Melting Point°F582
Upper Service Temperature (20,000h)°F500
Flame RatingUL 94V-O
Thermal ConductivityBTU/hr/ft2/deg °F in1.3
Linear Coefficient of Thermal ExpansionD69613
Heat of FusionBTU/LB13
Heat of CombustionBTU/LB2,300
Low Temperature Embrittlement°F-450
ELECTRICAL PROPERTIES
Dielectric ConstantD150/103Hz ( 106Hz )2.1
Dielectric Strength 10 mil filmD149>2,000
Volume Resistivity ohm-cmD257>10^18
Surface Resistivity ohm/sq.D257>10^17
GENERAL PROPERTIES
Chemical/Solvent ResistanceD543Excellent
Water Absorption, 24hr / %<.03
Deformation Under LoadD621/110°C2.4
Refractive Index1.34
Limiting Oxygen Index %>95