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Tuffak® XL is 300 times stronger than single-strength glass and significantly stronger than other transparent sheet materials. Tuffak® XL polycarbonate sheet is produced via a proprietary process that creates a built-in UV barrier. As a result, sign makers using this sheet gain many advantages, including extended life of its impact properties, longer term yellowing resistance and higher light transmission over standard, general-purpose polycarbonate sheet. Surface haze and yellowing will combine to reduce light transmission through a sign material. Tuffak® XL polycarbonate sheet retains a high degree of light transmission over standard polycarbonate, allowing your sign image to remain crisp and clear for a longer period of time.

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Sheet 1/8″ – 1/2″ 48” x 96” CTS Clear

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 PropertiesUnitsASTMResults
Density g/cm^3 D792 1.2
Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 8400
Tensile Modulus MPa D638
Tensile Elongation @Break % D638 100
Flexural Strength MPa
Flexural Modulus psi
Compressive Strength psi D695
IZOD Impact Strength Notched kJ.m^2 D256 16
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion x10^-5/K C177
Heat Deflection Temp at 264 psi °F 275
Electrical PropertiesUnitsASTMResults
Surface Resistivity @60 Hz ohms/sq D257
Volume Resistivity, 50% RH ohm-cm D250
Optical PropertiesUnitsASTMResults
3mm Transparent Clear Transmittance. Total (%) % D1003
Refractive Index % D542 1.586


  • Traffic walk/Do not walk signs
  • Transportation – Rail
  • Store front signage
  • Signage and display
  • Windows


  • Built in UV barrier
  • High impact resistance
  • Designed specifically for sign applications
  • Thermoformable
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