Material: Tecapet™ PET
Polyethylene Terephthalate
Tecapet™ PET is an unreinforced, semi-crystalline thermoplastic polyester derived from polyethylene terephthalate. Its excellent wear resistance, low
coefficient of friction, high flexural modulus, and superior dimensional stability make it a versatile material for designing mechanical and electro-mechanical
parts. Because Tecapet™ PET has no centerline porosity, the possibility of fluid absorption and leakage is virtually eliminated. This material offers excellent
wear resistance, lov coefficient of friction and has great chemical resistance. Tecapet™ PET is also compliant to FDA regulation 21 CFR 177.1630 for use in
contact with food. This material has uses in water purification systems, printing equipment, textile components, food-handling equipment and valves.
| Mechanical Properties |
Test Method ASTM |
Value |
Units |
|
|
|
|
| Density |
D792 |
0.0499 |
lbs/in3
|
| Specific Gravity |
D792 |
1.38 |
g/cc |
| Water Absorption @ 24 hours, 73°F |
D570 |
0.1 |
% |
| Water Absorption @ Saturation, 73°F |
D570 |
0.5 |
% |
| Tensile Strength, 73°F |
D638 |
12500 |
psi |
| Tensile Modulus |
D639 |
470000 |
psi |
| Elongation ( at break), 73°F |
D638 |
20 |
% |
| Flexural Strength, 73°F |
D790 |
17600 |
psi |
| Flexural Modulus of Elasticity, 73°F |
D790 |
430000 |
psi |
Compressive Strength |
D695 |
|
psi
|
| Izod Impact Strength, 73°F |
D256 |
0.7 |
ft-lb/in of notch
|
| Rockwell Hardness, 73°F |
D785 |
M - 94 |
M or R Scale |
| Shure Hardness |
|
|
D Scale
|
| Wear Factor Against Steel, 40 psi, 50 fpm |
D3702 |
210 X 10-10 |
in.3-min/ft.lbs.hr |
| Static Coefficient of Friction |
D3702 |
0.19 |
|
| Dynamic Coefficient of Friction, 40 pcs, 50 fpm |
D3702
|
0.25
|
|
|
|
|
|
| Thermal Properties |
|
|
|
|
|
|
|
|
|
| Heat Deflection Temperature @ 66 psi |
D648 |
240 |
°F |
| Heat Deflection Temperature @ 264 psi |
D648 |
175 |
°F |
| Coefficient of Linear Thermal Expansion |
D696 |
3.9 X 10-5 |
in/in./°F |
| Continuous Servicing Temperature, Intermittent |
|
320 |
°F |
| Continuous Servicing Temperature, Long Term |
UL746B
|
230 |
°F |
| Specific Heat |
|
0.28
|
BTU/lb -°F |
| Thermal Conductivity |
|
2.01 |
|
| Melting Point |
D2133
|
490
|
°F |
| Flammability |
UL94
|
HB |
(mm) |
|
|
|
|
| Electrical Properties |
|
|
|
|
|
|
|
|
|
| Surface Resistivity |
D257 |
|
ohm/square |
| Volume Resistivity |
D257 |
1015 |
ohm - cm |
| Dielectric Strength |
D149 |
400 |
Volts/mil |
| Dielectric Constant, 60 Hz, 73°F, 50% RH |
D150
|
3.4 |
|
| Dissipation Factor, 60 HZ, 73°F |
D150 |
0.002 |
|
|
|
|
|
| *The values shown in these and the following charts are typical,
average properties. Actual values may differ due to variations
in resin formulations and processing methods. These values are
obtained from sources believed to be reliable, including the
resin manufactures, converters and other published sources.
However, they should not be used for specification or design
purposes. |
