Low Density Polyethylene (LDPE) is an economical option for many applications requiring low temperature flexibility, toughness, and durability.
LDPE is the least expensive, most flexible (more than HDPE), and has good clarity in film form. However, it has low temperature impact resistance and the least heat resistance with a maximum service temperature of 160° to 180°F. LDPE is also susceptible to stress cracking, especially by detergents. LDPE’s easy machinability makes it a good choice for fabricated parts where corrosion and chemical resistance is required, although it can be attacked by strong oxidizing acids. LDPE is available natural (milky white) and black (recommended for improved durability in direct sunlight or outdoor exposure). Some sizes are available in various colors.
Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.
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Low Density Polyethylene
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Sheet, Rod, Tube, Film
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| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | 1/16″ – 2″ TH | Up to 48″ x 96″; CTS | Natural |
| Rod | 0.25″ – 12″ DIA | Std. foot lengths; CTS | Natural |
| Tube | 0.125″ – 1″ ID; wall thickness and OD varies | Std. foot lengths; CTS | Natural |
| Film | 0.004 – 0.006″ TH | 36″ – 180″ roll width; Std. foot lengths; CTS | Clear, Black |
Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.
| Physical Properties | Units | ASTM | Results |
|---|---|---|---|
| Density | lb/in3 | D792 | 0.033 |
| Water Absorption, 24 hrs | % | D570 | <0.01 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength @yield | psi | D638 | 1,800 – 2,200 |
| Tensile Elongation @Yield | % | D638 | 600 |
| Hardness, Shore D | D785 | 41 – 50 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | No Break |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coefficient of Linear Thermal Expansion | (x 10-5 in./in./°F) | D696 | 3 |
| Heat Deflection Temp at 66 psi | °F | D648 | 120 |
| Heat Deflection Temp at 264 psi | °F | 105 | |
| Melting Temperature | °F | D3418 | 230 |
| Max Operating Temp | °F | 160 | |
| Flammability Rating | UL94 | NR |
| Electrical Properties | Units | ASTM | Results |
|---|---|---|---|
| Dielectric Strength | V/mil | D149 | 460 – 700, 1/8″ th. |
| Dielectric Constant | D150 | 2.25 – 2.30@1 kHz | |
| Dissipation Factor | D150 | 0.0003 @1 kHz | |
| Volume Resistivity, 50% RH | ohm-cm | D257 | 10^15 |