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
  • 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 Condition Value Test Method Comment
Mechanical Modulus of elasticity (tensile test) 470,000 psi ASTM D 638
Tensile strength at yield @ 73°F 13000 psi ASTM D 638
Elongation at break @ 73°F 20 % ASTM D 638
Flexural strength @ 73°F 19000 psi ASTM D 790
Modulus of elasticity (flexural test) @ 73°F 500,000 psi ASTM D 790
Impact strength (Izod) @ 73°F 0.70 ft-lbs/in ASTM D 256
Rockwell hardness M Scale, @ 73°F 101 ASTM D 785
Coefficient of friction Dynamic, 40 psi, 50 fpm 0.25 % ASTM D 3702 1) 1) Injection molded specimen
Coefficient of friction Static 0.19 % ASTM D 3702 1)
Wear rate Against Steel, 40 psi, 50 fpm 210*10-10 in3-min/ft-lbs-hr ASTM D 3702 1)
Thermal Melting temperature 490 °F 2) 2) Per ASTM D3418
Heat distortion temperature @ 264 psi 175 °F ASTM D 648
Heat distortion temperature @ 66 psi 240 °F ASTM D 648
Service temperature Long Term 230 °F
Service temperature Intermittent 320 °F
Thermal expansion (CLTE) 3.9*105 in/in/°F ASTM D 696
Specific heat 0.28 BTU/ln-F°
Thermal conductivity 2.01 BTU-in/hr-ft2-°F
Electrical Volume resistivity 1015 Ω*cm ASTM D 257 3) 3) Injection molded specimen
Dielectric strength 400 V/mil ASTM D 149 3)
Dissipation factor @ 60 Hz, 73°F 0.002 % ASTM D 150 3)
Dielectric constant @ 60 Hz, 73°F, 50% RH 3.4 % ASTM D 150 3)
Other Moisture absorption @ 24 hours, 73°F 0.10 % ASTM D 570
Moisture absorption @ saturation, 73°F 0.50 % ASTM D 570
Flammability (UL94) HB % 4) 4) Estimated

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