What is the Material: PETG is an amorphous material.

Key Material Features: This material is beneficial in applications requiring impact resistance, and transparency.

Other Considerations: Is has greater impact resistance than acrylic and it is easier to work with than polycarbonate. In addition, PETG is always food grade and polycarbonate is not. Polycarbonate can have a food grade coating, but the material itself is not food grade.


Property Value Typical ASTM Test
Chemical Designation (PETG) Polyethylene Terephthalate Glycol Modified
Trade Names (®, ™) Vivak, Spectar
Color Transparent
Density (g/cm^3) 1.27 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 320300 D 638
Tensile Strength at Yield (psi) 7700 D 638
Tensile Strength at Break (psi) 3800 D 638
Elongation at Yield (%) 4.8 D 638
Elongation at Break (%) 50 D 638
Flexural Strength (psi) 11200 D 790
Modulus of Elasticity (Flexural Test) (psi) 310000 D 790
Compression Strength: 10% Strain (psi) 8000 D 695
Impact Strength (Izod) (ft-lbs/in) 1.7 D 256
Hardness (R) 115 D 785


Property Value Typical ASTM Test
Vicat Softening Point (°F) 181
Glass Transistion Temperature (°F) 178 D 3418
Deflection Temperature (°F) (66 psi) 164 D 648
Deflection Temperature (°F) (264 psi) 157 D 648
Thermal Expansion (CLTE) (in/in/°F) 3.80E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 0.13


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E16 D 257
Volume Resistivity (Ω*cm) 1.00E15 D 257
Dielectric Strength (V/mil) 410 D 149
Dissipation Factor (1MHz) 0.02 D 150
Dielectric Constant (1MHz) 2.4 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.2 D 570
Light Transmission (%) 86 D1008
Flammability HB
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.