PSU Unfilled


What is the Material: PSU Unfilled is an amorphous material.

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

Other Considerations: It is fitting in applications including autoclaves, fluid-handling systems, and continuous exposure to hot chlorinated water.


Property Value Typical ASTM Test
Chemical Designation (PSU) Polysulfone
Trade Names (®, ™) PSU 1000, Tecason S, Unifon PSO, Termalux
Color Yellow
Density (g/cm^3) 1.24 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 375000 D 638
Tensile Strength at Yield (psi) 10200 D 638
Tensile Strength at Break (psi) 11800 D 638
Elongation at Break (%) 30 D 638
Flexural Strength (psi) 15400 D 790
Modulus of Elasticity (Flexural Test) (psi) 375000 D 790
Compression Strength: 10% Strain (psi) 13000 D 695
Compression Strength: 1% Strain (psi) 1800 D 695
Compression Modulus (psi) 245000 D 695
Impact Strength (Izod) (ft-lbs/in) 1.3 D 256
Hardness (R) 125 D 785
Hardness (M) 75 D 785
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) 0.36 D 3702


Property Value Typical ASTM Test
Deflection Temperature (°F) (66 psi) 359 D 648
Deflection Temperature (°F) (264 psi) 345 D 648
Service Temperature Continuous (°F) 300
Service Temperature Intermittent (°F) 340
Thermal Expansion (CLTE) (in/in/°F) 3.10E-5 D 696


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E13 D 257
Dielectric Strength (V/mil) 425 D 149
Dissipation Factor (1MHz) 0.005 D 150
Dielectric Constant (1MHz) 3.06 D 150
Dielectric Constant (60 Hz and 50% RH) 3.1 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.3 D 570
Moisture Absorption (%) (Saturated) 0.6 D 570
Flammability V-0
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.