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Polycarbonate is the most impact-resistant clear sheet available today, and Lexan™ is the most common brand name of polycarbonate. 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.
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.

Brand Names

  • Lexan® 3412
  • Lexan® 3413
  • Lexan® 3414
  • Lexan® 500
  • Susta® PC GF20
  • Tecanat™ GF20
  • Unicar® RG

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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At a Glance

Generic Name
Polycarbonate, General Purpose Sheet

Available In
Sheet, Rod

Certifications
MIL-P-19904

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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

TypeSizeLengthColor
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.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in³ D792 0.0401 – 0.0567
Water Absorption, 24 hrs % D570 0.050 0 – 0.300
Mechanical PropertiesUnitsASTMResults
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 PropertiesUnitsASTMResults
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 PropertiesUnitsASTMResults
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

Applications

  • Housings and covers
  • Impact shields
  • Fluid handling components
  • Scientific equipment and housing components
  • Electrical components
  • Manifolds

Advantages

  • High impact strength
  • Low moisture absorption
  • Easy to machine, fabricate, paint, and glue
  • Transparent
  • Excellent flammability rating
  • Good Optical clarity

Grades

  • Machine Grade
  • Optical Grade
  • Static Contro
  • Glass Filled
  • Flame Retardant
  • Bullet Resistant

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.

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