Poly-Texx H.O.T. is the newest development in the line of abrasion resistant plastic materials. It is a self-lubricating Bearing Grade UHMW with a High Operating Temperature (H.O.T.). It meets requirements of FDA regulation 21CFR 177.1520, item 2.1 and 2.2, for articles intended for direct food contact usage and regulation 21CFR 178.2010 governing additives and food contact usage. Typical applications include bushings, chain guides, wiping blades and slide plates for the food and industrial applications. Its main attribute is a short term operating temperature of 275 F. The combination of excellent bearing properties, self-lubrication and high operating temperature, makes Poly-Texx H.O.T. a great choice for many demanding applications.
| Specification | Test | Value | Units |
| Density, 73°F | D792 | .93 | gm/cm3 |
| Tensile Strength @ Yield, 73°F | D638 | 3584 | psi |
| Tensile Modulus of Elasticity, 73°F | D638 | 120,000 | psi |
| Tensile Elongation (at break), 73°F | D638 | 242 | % |
| Flexural Strength, 73°F | D790 | - | psi |
| Flexural Modulus of Elasticity | D790 | 110,000 | psi |
| Shear Strength, 73°F | D732 | - | psi |
| Compressive Strength – Ultimate | - | 750 | psi |
| Compressive Strength at 2% Deformation | D695 | - | psi |
| Compressive Strength at 10% Deformation | D695 | 1,000 | psi |
| Deformation Under Load | - | - | % |
| Compressive Modulus of Elasticity, 73°F | D695 | - | - |
| Compressive Strength ⊥ to Laminate (Modulus) | - | 750 | psi |
| Compressive Strength ⊥ to Laminate (Yield) | - | 750 | psi |
| Compressive Strength ⊥ to Laminate (Ultimate) | - | 750 | psi |
| Hardness, Durometer (Shore “D” scale) | D2240 | 58 | - |
| Hardness, Rockwell (Scale as noted) | D785 | - | Rockwell M |
| Izod Impact, Notched @ 73°F | D256 Type A | No Break | ft.lbs/in. of notch |
| Coefficient of Friction (Dry vs Steel) Static | PTM55007 | .15-.20 | - |
| Coefficient of Friction (Dry vs Steel) Dynamic | PTM55007 | .10-.14 | - |
| Maximum Static Bearing Load (P) | PTM55007 | 750 | psi |
| Maximum Unlubricated No Load Bearing Velocity (V) | PTM55007 | 15 | ft/minute |
| Maximum Limiting PV (Unlubricated) | PTM55007 | 750 | psi x ft/min. |
| Wear Factor “K” x 10-10 | PTM55010 | - | Cubic in.-min/ft.lbs.hr |
| Sand Wheel Wear/Abrasion Test | - | 100 | UHMW=100 |
| Minimum Mating Surface Hardness | - | 20 | Rockwell (Brinnell) |
| Coefficient of Linear Thermal Expansion | E-831(TMA) | 11 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion // to Laminates | E-831(TMA) | 11 | in/in/°F x 10-5 |
| Coefficient of Thermal Expansion I to Laminates | E-831(TMA) | 11 | in/in/°F x 10-5 |
| Softening Point | - | 180 | °F |
| Heat Deflection Temperature 264 psi | D648 | 116 | °F |
| Embrittlement Temperature | - | - | °F Min. |
| Continuous Service Temperature in Air | - | 275 | °F Max. |
| Short Term Service Temperature | - | 275 | °F Max. |
| Tg-Glass Transition (Amorphous) | D3418 | - | °F |
| Melting Point (Crystalline) Peak | D3418 | - | °F |
| Thermal Conductivity | F433 | 2.84 | BTU-in/(hr/ft2°F) |
| Dielectric Strength Short Term | D149 | - | Volts/mil |
| Volume Resistivity | D257 | >1015 | ohm/cm |
| Surface Resistivity | D257 | >1015 | ohm/cm |
| Dielectric Constant, 10^6 Hz | D150 | 2.3 | - |
| Dissipation Factor, 10^6 Hz | D150 | .005 | - |
| Flammability @ 3.1mm(1/8 in.) UL94 | UL94 | HB | - |
| Arc Resistance | - | - | seconds |
| Water Absorption, Immersion 24 Hours | D570 (2) | Nil | % |
| Water Absorption, Immersion Saturation | D570 (2) | Nil | % |
| Machinability Rating | - | 3 | 1=easy, 10=difficult |
| Rod Diameter Availability (Off the Shelf) | .50 | 10 | inches |
| Sheet Thickness Availability (Off the Shelf) | .125 | 3.5 | inches |