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PTFE Properties
FlexTech PTFE hose and assemblies offer unique properties which include excellent chemical resistance, high temperature resistance (up to 260°C, 500°F) and a frictionless, easy clean surface.
These properties determine the types of application areas in which PTFE hose can provide the best possible hose product for the job.
Available in PTFE smoothbore or PTFE convoluted bore with assortment grades, covers & end terminations. Compounds manufactured from DuPont in virgin or Anti-
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PTFE Detailed Properties - | ||
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Properties |
ASTM or Unit |
PTFE |
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MECHANICAL PROPERTIES | ||
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Specific Gravity |
D792 |
2.18 |
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Elongation % |
D638 |
200~450 |
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Tensile Strength (psi) |
D638 |
2,000~7,000 |
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Flexural Strength (psi) |
D790 |
no break |
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Compressive Strength |
D695 |
3,500 |
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Tensile Elastic Modulus |
D638 |
57,000 |
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(Young's Modulus) (psi) |
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(psi) |
D790 |
71,000~85,000 |
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103MPa (103kgf/cm2) |
D790 |
0.5- |
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D790 |
(5.0- |
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FlexLife (MIT Cycles) |
D2176 |
>1,000,000 |
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Hardness Durometer Shore D |
D636 |
D50~65 |
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Coefficient of Friction |
on steel |
0.02 |
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Abrasion Resistance 1000 REVS. |
Taber |
12 |
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Impact Strength IZOD 73°F/23°C, notched ft/lbs/in |
D256 |
3 |
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THERMAL PROPERTIES | ||
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Melting Point |
°C |
327 |
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Melting Point |
°F |
621 |
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Upper Service |
°C |
260 |
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Temperature(20,000h) |
°F |
500 |
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Flame Rating** |
UL 94 |
V- |
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Thermal Conductivity |
BTU/hr/ft2/deg F in cal/sec/cm2,ºC/cm |
1.7 6 x 10- |
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Linear Coefficient of Thermal Expansion 10- |
D696 |
>11.6 |
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Heat of Fusion |
BTU/LB |
29- |
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Heat of Combustion |
BTU/LB |
2200 |
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Low Temperature Embrittlement |
°C |
- |
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°F |
- | |
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ELECTRICAL PROPERTIES | ||
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Dielectric Constant |
D150/103Hz |
2.1 |
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D150/106Hz |
2.1 | |
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Dielectric Strength 10 mil film |
D149 |
>1400 |
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Volume Resistivity ohm- |
D257 |
>1018 |
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Surface Resistivity ohm/sq. |
D257 |
>1017 |
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GENERAL PROPERTIES | ||
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Chemical/Solvent Resistance |
D543 |
Excellent |
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Water Absorption, 24h |
% |
<0.01 |
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Deformation Under Load |
*D621/100°C **D621/25°C |
5 7 |
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Refractive Index |
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1.35 |
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Limiting Oxygen Index |
>95 |
>95 |
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Properties |
ASTM or Unit |
PTFE |
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*6.8 MPa (986 psi),24h |
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**13.7 MPa (1987 psi),24h |
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