TECAPET
TECAPET®PET is an unreinforced, semicrystalline 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.
- Excellent wear resistance
- Low coefficient of friction
- Very good chemical resistance
- No centerline porosity eliminates the possibility of fluid absorption and leakage
- Good electrical insulator
- High mechanical strength
- Excellent hardness and stiffness
- Good weather resistance
- In compliance with FDA regulations 21 CFR 177.1630 for use in contact with food
- Low water absorption
- Good resistance to high-energy radiation
TECAPET™PET superior wear resistance and lack of centerline porosity give it an advantage over other materials for applications involving solvents, chemicals, and food products. TECAPET™PET is also used in water purification systems, printing equipment, textile components, food-handling equipment, and valves.
| Properties | ASTM Test Method | Units | TECAPET™PET | |
|---|---|---|---|---|
| Physical |
Density
|
D792 | lbs/in3 | 0.0499 |
|
Specific Gravity
|
D792 | g/cc | 1.38 | |
|
Water Absorption, @24 hours, 73°F
|
D570 | % | 0.10 | |
|
@Saturation, 73°F
|
D570 | % | 0.50 | |
| Mechanical |
Tensile Strength @ Yield, 73°F
|
D638 | psi | 12,500 |
|
Tensile Modulus
|
D639 | psi | 470,000 | |
|
Elongation @ Break, 73°F
|
D638 | % | 20 | |
|
Flexural Strength, 73°F
|
D790 | psi | 17,600 | |
|
Flexural Modulus, 73°F
|
D790 | psi | 430,000 | |
|
Compressive Strength
|
D695 | psi | - | |
|
Izod Impact Strength, 73°F
|
D256 | ft-lbs/in | 0.70 | |
|
Rockwell Hardness, 73°F
|
D785 | M Scale | 94 | |
|
Shure Hardness
|
- | D Scale | - | |
|
Wear Factor Against Steel, 40 psi, 50 fpm
|
D3702 | in3 1 --- x --- hr PV |
210 x 10-10 | |
|
|
- | - | ||
|
Static Coefficient of Friction
|
D3702 | - | 0.19 | |
|
Dynamic Coefficient of Friction, 40 psi, 50 fpm
|
D3702 | - | 0.25 | |
| Thermal |
Heat Deflection Temperature @ 66 psi
|
D648 | °F | 240 |
|
@264 psi
|
D648 | °F | 175 | |
|
Coefficient of Linear Thermal Expansion
|
D696 | in/in/°F | 3.9 x 10-5 | |
|
Maximum Servicing Temperature, Intermittent
|
- | °F | 320 | |
|
Long Term
|
- | °F | 230 | |
|
Specific Heat
|
UL746B | BTU/lb-°F | 0.28 | |
|
Thermal Conductivity
|
- | - | 2.01 | |
|
Vicate Softening Point
|
- | °F | - | |
|
Melting Point
|
D3418 | °F | 490 | |
|
Flammability
|
UL94 | - | HB | |
| Electrical |
Surface Resistivity
|
D257 | ohm/square | - |
|
Volume Resistivity
|
D257 | ohm-cm | 1015 | |
|
Dielectric Strength
|
D149 | V/mil | 400 | |
|
Dielectric Constant, @ 60 Hz, 73°F, 50% RH
|
D150 | - | 3.4 | |
|
@ 1 MHz
|
D150 | - | - | |
|
@ 20 GHz
|
D150 | - | - | |
|
@ 30 GHz
|
D150 | - | - | |
|
Dissipation Factor, @ 60 HZ, 73°F
|
D150 | - | 0.002 | |
| This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved. Data obtained from extruded shapes material. TECAPET™PET - Ensinger Industries, Inc. |
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