Poly-Texx PVX
Poly-Texx PVX is an ultra high-performance engineering thermoplastic material. This semi-crystalline material has a balance of high temperature, outstanding mechanical properties, chemical and steam resistance, superior tribological (wear) properties and low friction, making it one of the most capable bearing materials available. It can handle outdoor and hostile environments.
Poly-Texx PVX key characteristics are high compressive strength, low coefficient of thermal expansion, superior bearing and wear properties, superior resistance to steam and is self lubricating.
| Specification | Test | Value | Units |
| Specific Gravity, 73°F | D792 | 1.48 | Lb/in.3 |
| Tensile Strength @ Yield, 73°F | D638 | 17,300 | psi |
| Tensile Modulus of Elasticity, 73°F | D638 | psi | |
| Tensile Elongation (at break), 73°F | D638 | 1.6 | % |
| Flexural Strength, 73°F | D790 | 30,000 | psi |
| Flexural Modulus of Elasticity | D790 | 1,400,000 | psi |
| Shear Strength, 73°F | D732 | psi | |
| Compressive Strength – Ultimate | 16,000 | psi | |
| Compressive Strength at 2% Deformation | D695 | 16,500 | psi |
| Compressive Strength at 10% Deformation | D695 | psi | |
| Deformation Under Load | % | ||
| Compressive Modulus of Elasticity, 73°F | D695 | ||
| Compressive Strength ⊥ to Laminate (Modulus) | 16,000 | psi | |
| Compressive Strength ⊥ to Laminate (Yield) | 16,000 | psi | |
| Compressive Strength ⊥ to Laminate (Ultimate) | 16,000 | psi | |
| Hardness, Durometer (Shore “D” scale) | D2240 | D87 | |
| Hardness, Rockwell (Scale as noted) | D785 | Rockwell M | |
| Izod Impact, Notched @ 73°F | D256 Type A | 3.25 | ft.lbs/in. of notch |
| Coefficient of Friction (Dry vs Steel) Static | PTM 55007 | 0.2 | |
| Coefficient of Friction (Dry vs Steel) Dynamic | PTM 55007 | 0.1-0.15 | |
| Maximum Static Bearing Load (P) | PTM 55007 | 16,000 | psi |
| Maximum Unlubricated No Load Bearing Velocity (V) | PTM 55007 | 600 | ft/minute |
| Maximum Limiting PV (Unlubricated) | PTM 55007 | 100,000 | psi x ft/min. |
| Wear Factor “K” x 10-10 | PTM 55010 | Cubic in.-min/ft.lbs.hr | |
| Sand Wheel Wear/Abrasion Test | 50 | UHMW=100 | |
| Minimum Mating Surface Hardness | 25 | Rockwell (Brinnell) | |
| Coefficient of Linear Thermal Expansion | E-831 (TMA) | 3.11 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion // to Laminates | E-831 (TMA) | 3.11 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion I to Laminates | E-831 (TMA) | 3.11 | in/in/°F x 10-5 |
| Softening Point | 530 | °F | |
| Heat Deflection Temperature 264 psi | D648 | 530 | °F |
| Embrittlement Temperature | Cryogenic | °F Min. | |
| Continuous Service Temperature in Air | 480 | °F Max. | |
| Short Term Service Temperature | 500 | °F Max. | |
| Tg-Glass Transition (Amorphous) | D3418 | °F | |
| Melting Point (Crystalline) Peak | D3418 | 633 | °F |
| Thermal Conductivity | F433 | 2.2 | BTU-in/(hr/ft2°F) |
| Dielectric Strength Short Term | D149 | Volts/mil | |
| Volume Resistivity | D257 | 1.2 x 1010 | ohm/cm |
| Surface Resistivity | D257 | ohm/cm | |
| Dielectric Constant, 106 Hz | D150 | ||
| Dissipation Factor, 106 Hz | D150 | ||
| Flammability @ 3.1mm(1/8 in.) UL94 | UL94 | ||
| Arc Resistance | seconds | ||
| Water Absorption, Immersion 24 Hours | D570 (2) | 0.06 | % |
| Water Absorption, Immersion Saturation | D570 (2) | .3 | % |
| Machinability Rating | 3 | 1=easy, 10=difficult | |
| Tubing Diameter Availability (Off the Shelf) | .50 | 6.0 | inches |
| Sheet Thickness Availability (Off the Shelf) | .250 | 3.0 | inches |
| Characteristics / Attributes | Very High Load / Self Lubricating / Highest PV Rating |
