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PSU 1000 (Polysulfone) is an amber semi-transparent, heat resistant, high performance engineering thermoplastic. It offers excellent mechanical, electrical and improved chemical resistance properties relative to polycarbonate. Properties remain consistent over a broad temperature range. It is hydrolysis resistant for continuous use in hot water and steam.
PSU 1000 Polysulfone offers high chemical resistance to acidic and salt solutions, and good resistance to detergents, hot water and steam. Polysulfone has excellent radiation stability, and offers low ionic impurity levels. It is commonly used for analytical instrumentation, medical devices and seminconductor process equipment components.
| Specification | Test | Value | Units |
| Specific Gravity, 73°F | D792 | 1.24 | - |
| Tensile Strength @ Yield, 73°F | D638 | 10,200 | psi |
| Tensile Modulus of Elasticity, 73°F | D638 | 390,000 | psi |
| Tensile Elongation (at break), 73°F | D638 | 30 | % |
| Flexural Strength, 73°F | D790 | 15,000 | psi |
| Flexural Modulus of Elasticity | D790 | 400,000 | psi |
| Shear Strength, 73°F | D732 | 9,000 | psi |
| Compressive Strength - Ultimate | psi | ||
| Compressive Strength at 2% Deformation | D695 | psi | |
| Compressive Strength at 10% Deformation | D695 | 13,000 | psi |
| Deformation Under Load | % | ||
| Compressive Modulus of Elasticity, 73°F | D695 | 375,000 | |
| Compressive Strength ⊥ to Laminate (Modulus) | psi | ||
| Compressive Strength ⊥ to Laminate (Yield) | psi | ||
| Compressive Strength ⊥ to Laminate (Ultimate) | psi | ||
| Hardness, Durometer (Shore "D" scale) | D2240 | D80 | |
| Hardness, Rockwell (Scale as noted) | D785 | M82 (R128) | Rockwell M |
| Izod Impact, Notched @ 73°F | D256 Type A | 1.3 | ft.lbs/in. of notch |
| Coefficient of Friction (Dry vs Steel) Static | PTM55007 | ||
| Coefficient of Friction (Dry vs Steel) Dynamic | PTM55007 | - | |
| Maximum Static Bearing Load (P) | PTM55007 | psi | |
| Maximum Unlubricated No Load Bearing Velocity (V) | PTM55007 | ft/minute | |
| Maximum Limiting PV (Unlubricated) | PTM55007 | - | psi x ft/min. |
| Wear Factor "K" x 10-10 | PTM55010 | - | Cubic in.-min/ft.lbs.hr |
| Sand Wheel Wear/Abrasion Test | UHMW=100 | ||
| Minimum Mating Surface Hardness | Rockwell (Brinnell) | ||
| Coefficient of Linear Thermal Expansion | E-831(TMA) | 3.10 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion // to Laminates | E-831(TMA) | in/in/°F x 10-5 | |
| Coefficient of Thermal Expansion I to Laminates | E-831(TMA) | in/in/°F x 10-5 | |
| Softening Point | °F | ||
| Heat Deflection Temperature 264 psi | D648 | 340 | °F |
| Embrittlement Temperature | °F Min. | ||
| Continuous Service Temperature in Air | 300 | °F Max. | |
| Short Term Service Temperature | °F Max. | ||
| Tg-Glass Transition (Amorphous) | D3418 | 374 | °F |
| Melting Point (Crystalline) Peak | D3418 | N/A | °F |
| Thermal Conductivity | F433 | 1.8 | BTU-in/(hr/ft2°F) |
| Dielectric Strength Short Term | D149 | 425 | Volts/mil |
| Surface Resistivity | D257 | >1013 | ohm/cm |
| Volume Resistivity | D257 | ohm/cm | |
| Dielectric Constant, 106 Hz | D150 | 3.14 | |
| Dissipation Factor, 106 Hz | D150 | 0.0008 | |
| Flammability @ 3.1mm(1/8 in.) UL94 | UL94 | HB | |
| Arc Resistance | seconds | ||
| Water Absorption, Immersion 24 Hours | D570 (2) | 0.3 | % |
| Water Absorption, Immersion Saturation | D570 (2) | 0.6 | % |
| Machinability Rating | 3 | 1=easy, 10=difficult | |
| Rod Diameter Availability (Off the Shelf) | .25 | 6.0 | inches |
| Sheet Thickness Availability (Off the Shelf) | .25 | 2.50 | inches |