Poly-Texx Z combines the strength of Nylon with the resilience and wear resistances of Kevlar aramid fibers. This unique combination results in a material that is strong and extremely stiff. The aramid fibers along with Nylon’s inherent strength combine to create a material that has exceptional wear properties. The fibers give Poly-Texx Z exceptional abrasion resistances making it an ideal choice for rollers, chain guides, and rollers. Because the base polymer Nylon is hygroscopic, care should be taken to account for moisture when designing Poly-Texx Z into an application. Available in sheet, rod, and tubing, it is easily machined with standard metal working equipment. Tolerances of +/-.001 can be achieved with experience.

Specification Test Value Units
Specific Gravity, 73°F D792 1.19
Tensile Strength @ Yield, 73°F D638 16000 psi
Tensile Modulus of Elasticity, 73°F D638 1300000 psi
Tensile Elongation (at break), 73°F D638 4 %
Flexural Strength, 73°F D790 23000 psi
Flexural Modulus of Elasticity D790 900000 psi
Shear Strength, 73°F D732 7600 psi
Compressive Strength – Ultimate 19300 psi
Compressive Strength at 2% Deformation D695 3170 psi
Compressive Strength at 10% Deformation D695 16800 psi
Deformation Under Load < 2 %
Compressive Modulus of Elasticity, 73°F D695 359000
Compressive Strength ⊥ to Laminate (Modulus) - - psi
Compressive Strength ⊥ to Laminate (Yield) 1000 psi
Compressive Strength ⊥ to Laminate (Ultimate) 1000 psi
Hardness, Durometer (Shore “D” scale) D2240 D83
Hardness, Rockwell (Scale as noted) D785 116 Rockwell R
Izod Impact, Notched @ 73°F D256 Type A 2.7 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 0.19
Maximum Static Bearing Load (P) PTM 55007 2500 psi
Maximum Unlubricated No Load Bearing Velocity (V) PTM 55007 100 ft/minute
Maximum Limiting PV (Unlubricated) PTM 55007 8000 psi x ft/min.
Wear Factor “K” x 10-10 ASTM D 3702 79-128 Cubic in.-min/ft.lbs.hr
Sand Wheel Wear/Abrasion Test 90 UHMW=100
Minimum Mating Surface Hardness 20 Rockwell (Brinnell)
Coefficient of Linear Thermal Expansion E-831 (TMA) 1.6 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 470 °F
Embrittlement Temperature -22 °F Min.
Continuous Service Temperature in Air 200 °F Max.
Short Term Service Temperature 300 °F Max.
Tg-Glass Transition (Amorphous) D3418 °F
Melting Point (Crystalline) Peak D3418 347 °F
Thermal Conductivity F433 BTU-in/(hr/ft2°F)
Dielectric Strength Short Term D149 400 Volts/mil
Volume Resistivity D257 >1013 ohm/cm
Surface Resistivity D257 ohm/cm
Dielectric Constant, 106 Hz D150 3.1
Dissipation Factor, 106 Hz D150 0.01
Flammability @ 3.1mm(1/8 in.) UL94 UL94 -
Arc Resistance seconds
Water Absorption, Immersion 24 Hours D570 (2) 0.37 %
Water Absorption, Immersion Saturation D570 (2) 6.3 %
Machinability Rating 3 1=easy, 10=difficult
Rod Diameter Availability (Off the Shelf) 0.125 6 inches
Sheet Thickness Availability (Off the Shelf) 0.25 3 inches