11125 I-10 East
Orange, TX 77630
1-800-351-0026
409-745-2002
fax: 409-745-4277
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High Density Polyethylene (HDPE) has a high impact strength with a higher operating temperature than LDPE. HDPE has excellent tensile strength, energy consumption, abrasion resistance, and resistance to stress cracks.
| Polyethylene Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Property | ASTM or UL Test | LDPE | HDPE | UHMW | |||||
| Water Absorption (24hrs) | (%) | D-570 | <0.01 | 0 | 0 | ||||
| Density | (lb/in³) | D-792 | 0.033 | 0.035 | 0.034 | ||||
| (g/cm³) | 0.92 | 0.95 | 0.93 | ||||||
| IZOD Notched Impact | (ft-lb/in) | D-256 | No Break | 3 | No Break | ||||
| Tensile Strength | (psi) | D-638 | 1,800-2,200 | 4,600 | 3,100 | ||||
| Tensile Modulus | (psi) | D-638 | - | - | 125,000 | ||||
| Tensile Elongation at Yield | (%) | D-638 | 600 | 900 | - | ||||
| Hardness | (Shore D) | D-785 | D41-D50 | D69 | D62-D66 | ||||
| Compressive Strength | (psi) | D-695 | - | - | 2,000 | ||||
| Compressive Modulus | (psi) | D-695 | - | - | - | ||||
| Flexural Strength | (psi) | D-790 | - | - | - | ||||
| Flexural Modulus | (psi) | D-790 | - | 200,000 | 125,000 | ||||
| Thermal Conductivity | (BTU-in/ft²-hr-°F) | C-177 | - | - | 2.92 | ||||
| (x 104 cal/cm-sec-°C) | - | - | 10.06 | ||||||
| Heat Deflection Temp at 66 psi | (°F / °C) | D-648 | 110/38 | - | 203/95 | ||||
| Coefficient of Linear Thermal Expansion | (x 10-5 in./in./°F) | D-696 | - | - | 11.1 | ||||
| Flammability Rating | UL-94 | - | - | H-B | |||||
| Melting Temperature | (°F / °C) | D-3418 | - | - | - | ||||
| Max Operating Temp | (°F / °C) | - | 160/71 | 180/82 | 180/82 | ||||
| Dialectric Strength, 1/8" thick | (V/mil) | D-149 | - | - | 900 | ||||
| Dialectric Constant at 50 kHz | D-150 | - | - | 2.3 | |||||
| Dissipation Factor at 50 kHz | D-150 | - | - | 0.0002 | |||||
| Volume Resistivity at 50% RH | (ohm-cm) | D-257 | - | - | >5 x 1016 | ||||
| Physical | Mechanical | Thermal | Electrical | ||||||