Properties of PTFE
| Properties | Method | Result | Units | |
 |
Tensile Strength @ 73o F | D638-52T | 2000-4000 | PSI |
| Elongation @ 73o F | 200-400 | % | ||
| Young's Modulus @ 73o F | Standard | 0.58 4.08 |
lbft/in2 X 105 kgf/cm2 X 105 |
|
| Flexural Strength @ 73o F | ASTMD 790-61 | did not break | lbft/in2 | |
| Flexural Modulus @ 73o F | ASTMD 747-61T | 50000-90000 | lbft/in2 | |
| Impact strength (Izod)@ 73o F | ASTMD 256-66 | 3.0 | lbft/in2 | |
| Hardness durometer | ASTMD 1706-59T | D 50 - D 65 | ||
| Compressive stress @ 1% deformation @ 73o F @ 1% offset @ 73o F |
ASTM 695-52T ASTM 695-52T |
600 1000 |
PSI PSI |
|
| Deformation under load (122o F - 1000 PSI, 24 Hours) | ASTM D621-59 | 2.4 | % | |
| Deformation under load (122o F - 2000 PSI, 24 Hours) | ASTM D621-59 | 15 | % | |
 |
||||
| Coefficient of linear thermal Expansion per o F 73o F - 140 o F | ASTMD 696-44 | 5.5X10-5 | BTHU | |
| Thermal conductivity | Cenco fitch Apparatus | 1.7 | sq. ft/ o F/in | |
| Specific heat 0-212 o F range | - | 0.25 | BTU/ib/o F | |
| Head deflection temp. @ 66 psi | ASTMD 648-56 | 250 | o F | |
| Heat resistance | Standard | 500 | o F | |
 |
Dielectric strength short time 0.080 in | ASTMD 149-55T | 600 | V/mil |
| 0.005-0.012 in | " | 1000-2000 | V /mil | |
| Volume resistivity | ASTMD-257-57T | 108 | ohm-cm | |
| Surface arc resistance | ASTMD-495-56T | >300 | Sec. | |
| Dielectric constant @ 73o F 50% RH | ASTMD 150-54T | 21 | ||
| Dissipation factor 60 to 2 X 109 cps | ASTMD 150-59T | 0.0003 | ||
| Power factor @ 73o F 50% RH | ASTMD 150-54T | <0.0003 | ||
 |
Water Absorption 24 hours | ASTMD 570-54T | <0.01 | % |
| Flammability | ASTMD 635-56T | Non-flammable | ||
| Specific gravity | ASTMD 792-60T | 2.14 - 2.20 | ||
| Resistance to weathering | Standard | Excellent | ||
| Static kinetic coefficient of friction against polish steel | Various methods used | 0.05 to 0.08 | ||
Data given above are compiled from various sources and are average values.
All dimensions are in mm, unless specified.
- Contact Information
Polycoat Flowchem
Telephone : 91-79-2584 1713 - FAX : 91-79-2584 1831
- 3814, GIDC, Phase-IV, Vatva, Ahmedabad-382 445, India
- E mail polycoatad1@sancharnet.in
* Teflon, Tefzel are registered trade mark of Dupont, USA
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Last modified:
September 14, 2001
