Techtron® PPS (Polyphenylene Sulfide)
Techtron® PPS (polyphenylene sulfide) is the ideal for structural applications in corrosive environments. It has excellent chemical resistance up to 392 degrees F. It is an excellent lower cost alternative to PEEK at lower temperatures. Techtron® PPS is off white in color and is available in a wide range of rod and sheet sizes. It is now available as FDA compliant with advance notice. It is easily machined with common metal working equipment. Tolerances of +/-.001 can be achieved with experience.
| Specification | Test | Value | Units |
| Specific Gravity, 73°F | D792 | 1.35 | – |
| Tensile Strength @ Yield, 73°F | D638 | 13,500 | psi |
| Tensile Modulus of Elasticity, 73°F | D638 | 500,000 | psi |
| Tensile Elongation (at break), 73°F | D638 | 15 | % |
| Flexural Strength, 73°F | D790 | 21,000 | psi |
| Flexural Modulus of Elasticity | D790 | 575,000 | 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 | 21,500 | psi |
| Deformation Under Load | % | ||
| Compressive Modulus of Elasticity, 73°F | D695 | 430,000 | |
| Compressive Strength ⊥ to Laminate (Modulus) | psi | ||
| Compressive Strength ⊥ to Laminate (Yield) | psi | ||
| Compressive Strength ⊥ to Laminate (Ultimate) | psi | ||
| Hardness, Durometer (Shore “D” scale) | D2240 | D85 | |
| Hardness, Rockwell (Scale as noted) | D785 | M95 (R125) | Rockwell M |
| Izod Impact, Notched @ 73°F | D256 Type A | 0.6 | ft.lbs/in. of notch |
| Coefficient of Friction (Dry vs Steel) Static | PTM55007 | ||
| Coefficient of Friction (Dry vs Steel) Dynamic | PTM55007 | 0.40 | |
| Maximum Static Bearing Load (P) | PTM55007 | psi | |
| Maximum Unlubricated No Load Bearing Velocity (V) | PTM55007 | ft/minute | |
| Maximum Limiting PV (Unlubricated) | PTM55007 | 3,000 | psi x ft/min. |
| Wear Factor “K” x 10-10 | PTM55010 | 2,400 | 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) | 2.80 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion // to Laminates | E-831(TMA) | 2.8 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion I to Laminates | E-831(TMA) | 2.8 | in/in/°F x 10-5 |
| Softening Point | °F | ||
| Heat Deflection Temperature 264 psi | D648 | 250 | °F |
| Embrittlement Temperature | °F Min. | ||
| Continuous Service Temperature in Air | 425 | °F Max. | |
| Short Term Service Temperature | 450 | °F Max. | |
| Tg-Glass Transition (Amorphous) | D3418 | N/A | °F |
| Melting Point (Crystalline) Peak | D3418 | 540 | °F |
| Thermal Conductivity | F433 | 2 | BTU-in/(hr/ft2°F) |
| Dielectric Strength Short Term | D149 | 540 | Volts/mil |
| Surface Resistivity | D257 | >1013 | ohm/cm |
| Volume Resistivity | D257 | ohm/cm | |
| Dielectric Constant, 106 Hz | D150 | 3.0 | |
| Dissipation Factor, 106 Hz | D150 | 0.0013 | |
| Flammability @ 3.1mm(1/8 in.) UL94 | UL94 | V-O | |
| Arc Resistance | seconds | ||
| Water Absorption, Immersion 24 Hours | D570 (2) | 0.01 | % |
| Water Absorption, Immersion Saturation | D570 (2) | 0.03 | % |
| Machinability Rating | 3 | 1=easy, 10=difficult | |
| Rod Diameter Availability (Off the Shelf) | .375-4.0 | inches | |
| Sheet Thickness Availability (Off the Shelf) | .250-2.5 | inches |
| Characteristics / Attributes | Excellent Chemical Resistance / Easily Machined / FDA |
