Polycarbonate is the most impact-resistant clear sheet available today, and Lexan™ is the most common brand name of polycarbonate. With various grades of Lexan sheeting, the application capabilities are Virtually unbreakable, it is approximately 250 times stronger than plate glass and thirty times stronger than acrylic of equal thickness. Lexan™- sheet provides lasting protection against vandalism, burglary, and natural occurrences, such as high winds, snow loads, and hailstorms. It is unlikely to break, shatter, or chip when bombarded with thrown objects, such as rocks, bricks and bottles, nor is it likely that this material will break when hammered twisted or bent. Because of its ductility, Lexan™ glazing can be cured and cold-formed on site from flat sheet into much tighter curves than is possible with acrylic. This provides the freedom to construct curved architectural glazing during installation without the pre-forming and fabrication costs associated with glass and acrylic.
Emco Industrial plastics offers several grades of Lexan polycarbonate sheeting that are suitable for applications in need of flame or bullet resistance, high impact resistance, and high optical clarity.
| Brand Name | Grade Features |
| Lexan 3412 | 20% glass reinforced grade, flame retardancy |
| Lexan 3413 | 30% glass reinforcement, higher stiffness and flame retardancy |
| Lexan 3414 | 40% glass reinforced, flame retardancy |
| Lexan 500 | 10% glass reinforced, impact resistance and flame retardancy |
Additional brands of polycarbonate sheeting offered by Emco Industrial Plastics, includes:
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.
Lexan™ sheet is a superior insulating material when compared to equivalent thicknesses of glass. Double-glazing or over-glazing on existing windows can offer significant energy cost savings. clear Lexan™ sheet transmits up to 88% of visible light, close to that of glass. In applications requiring reduced light transmittance and increased shading, standard Lexan™ sheet is available in solar gray and bronze tints. Privacy patterns are also available for increased visual security.
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Request Fabrication/Machining ServicesGeneric Name
Polycarbonate, General Purpose Sheet
Available In
Sheet, Rod
Certifications
MIL-P-19904
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| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | 1/4″ – 4″ TH | Natural | |
| Rod | 1/4″ – 6″ DIA | Natural |
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 | 0.0401 – 0.0567 |
| Water Absorption, 24 hrs | % | D570 | 0.050 0 – 0.300 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength | psi | D638 | 9.0 – 9.5 |
| Tensile Elongation @Break | % | D638 | 1.00 – 6.00 |
| Flexural Strength | psi | D790 | 13,800 – 29,000 |
| Flexural Modulus | psi | 551,000 – 1,400,000 | |
| Compressive Strength | psi | D695 | 18000 |
| Compressive Modulus | psi | D695 | 500000 |
| Hardness, Rockwell R | D785 | 115 – 123 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | 1.00 – 3.30 |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coefficient of Linear Thermal Expansion | (x 10-5 in./in./°F) | D256 | 5.56 – 27.8 |
| Heat Deflection Temp at 66 psi | °F | D648 | 210 – 306 |
| Heat Deflection Temp at 264 psi | °F | 195 – 300 | |
| Melting Temperature | °F | D3418 | 210 – 331 |
| Max Operating Temp | °F | 270 | |
| Thermal Conductivity | BTU-in/ft²-hr-°F | C177 | 1.53 – 2.20 |
| Flammability Rating | UL94 | HB – 5VA |
| Electrical Properties | Units | ASTM | Results |
|---|---|---|---|
| Dielectric Strength. 1/8″ th. | V/mil | D149 | 470 |
| Dielectric Constant | D150 | 3.35 | |
| Dissipation Factor @ 60 Hz | D150 | 0.0011 | |
| Volume Resistivity | ohm-cm | D257 | 10¹⁶ |
NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.