The table below lists a generally accepted summary of properties that we believe to be reliable. Please note that many of these resins are produced in several varieties and property characteristics may vary. Therefore, determination of resin is dependent on the application and this table is only meant to serve as a general guideline.

PTFE Detailed Properties
(Polytetrafluoroethylene)

Properties	ASTM or Unit	PTFE
MECHANICAL PROPERTIES
Specific Gravity	D792	2.18
Elongation %	D638	200~450
Tensile Strength (psi)	D638	2,000~4,500
Flexural Strength (psi)	D790	no break
Compressive Strength	D695	3,500
Tensile Elastic Modulus (Young's Modulus) (psi)	D638	57,000
(psi) Flexural Modulus 103MPa (103kgf/cm2)	D790	71,000~ 85,000
(psi) Flexural Modulus 103MPa (103kgf/cm2)	D790	0.5-0.6 (5.0-6.0)
FlexLife (MIT cycles)	D2176	>1,000,000
Hardness Durometer Shore D	D636	D50~65
Coefficient of Friction	on steel	0.02
Abrasion Resistance 1000 revs.	Taber	12
Impact Strength IZOD 73°F/23°C, notched ft/lbs/in	D256	3
THERMAL PROPERTIES
Melting Point	°C (°F)	327 (621)
Upper Service Temperature(20,000h)	°C (°F)	260 (500)
Flame Rating**	UL 94	V-0
Thermal Conductivity	BTU/hr/ft²/deg F in	1.7
Thermal Conductivity	cal/sec/cm²,ºC/cm	6 x 10^-4
Linear Coefficient of Thermal Expansion 10-5 °C	D696	>11.6
Heat of Fusion	BTU/LB	29-37
Heat of Combustion	BTU/LB	2200
Low Temperature Embrittlement	°C (°F)	-268 (-450)
ELECTRICAL PROPERTIES
Dielectric Constant	D150/103Hz	2.1
Dielectric Constant	D150/106Hz	2.1
Dielectric Strength 10 mil film	D149	>1400
Volume Resistivity ohm-cm	D257	>10¹⁸
Surface Resistivity ohm/sq.	D257	>10¹⁷
GENERAL PROPERTIES
Chemical/Solvent Resistance	D543	Excellent
Water Absorption, 24h	%	<0.01
Deformation Under Load	*D621/100°C	5.0
Deformation Under Load	**D621/25°C	7.0
Refractive Index		1.35
Limiting Oxygen Index	>95	>95
Properties	ASTM or Unit	PTFE
6.8 MPa (986 psi),24h *13.7 MPa (1987 psi),24h

PTFE Detailed Properties (Polytetrafluoroethylene)

Properties

ASTM or Unit

PTFE

PTFE Detailed Properties
(Polytetrafluoroethylene)