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Physical Properties for TUFFAK® GP Polycarbonate Sheet

General Purpose Sheet

TUFFAK® GP Polycarbonate Sheet has a polished surface, Transparent, UV Stabilized, polycarbonate product. It features outstanding impact strength, and superior dimensional stability. TUFFAK® GP Sheet has a five (5) year Warranty against breakage. The terms of warranty against breakage are set forth in the GP warranty, which is available upon request.

Applications: A broad range of industrial glazing and structural applications, including thermoformed and fabricated components.

PropertyTest MethodUnitsValues
Specific GravityASTM D 792-1.2
Refractive indexASTM D 542-1.586
Light Transmission, Clear @ 0.125"ASTM D 1003%86
Water Absorption, 24 hrsASTM D 570%0.15
Poisson's RatioASTM E 132-0.38
PropertyTest MethodUnitsValues
Tensile Strength, UltimateASTM D 638psi9,500
Tensile Strength, YieldASTM D 638psi9,000
Tensile ModulusASTM D 638psi340,000
ElongationASTM D 790%110
Flexural StrengthASTM D 790psi13,500
Flexural ModulusASTM D 695psi345,000
Compressive StrengthASTM D 695psi12,500
Compressive ModulusASTM D 256psi345,000
Izod Impact Strength, Notched @ 0.125"ASTM D 256ft.-lbs./in.18
Izod Impact Strength, Unnotched @ 0.125"ASTM D 3763ft.-lbs./in.60 (no break)
Instrumented Impact, 0.125"ASTM D 732ft.-lbs.47
Shear Strength @ YieldASTM D 732psi10,000
Shear Strength, ultimateASTM D 732psi6,000
Shear modulusASTM D 785psi114,000
Rockwell HardnessASTM D 785-M70 / R118
PropertyTest MethodUnitsValues
Coefficient of Thermal ExpansionASTM D 696in/in/°F3.75 x 10-5
Coefficient of Thermal ConductivityASTM C 177BTU in/hr ft2 °F1.35
Heat Deflection Temperature @ 264 psiASTM D 648°F270
Heat Deflection Temperature @ 66 psiASTM D 648°F280
Brittleness TemperatureASTM D 746°F-200
Shading Coefficient, Clear 0.125"ASHRAE-1.02
U factor 0.25" (summer gain, winter loss)ASTM D 1363BTU/hr ft2 °F0.90, 0.96
PropertyTest MethodUnitsValues
Dielectric Constant @ 10 HzASTM D 150-2.96
Dielectric Constant @ 60 HzASTM D 150-3.17
Volume ResistivityASTM D 257Ohm/cm8.2 X 1016
Dissipation Factor @ 60 HzASTM D 150-0.00009
Arc Resistance
Stainless Steel Strip ElectrodesASTM D 495Seconds10-11
Tungsten ElectrodesASTM D 495Seconds120
Dielectric Strength, in air @ 0.125"ASTM D 149V/mil380
PropertyTest MethodUnitsValues
Horizontal Burn, AEBASTM D 635In<1
Ignition Temperature, SelfASTM D 1929°F1070
Ignition Temperature, FlashASTM D 1929°F870
Flame Class, Clear @ 0.060"UL 94-V2
Flame Class, Clear @ 0.236"UL 94-V0

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Title: Physical Properties for TUFFAK® GP Polycarbonate Sheet
Description: Physical, Mechanical, Thermal, Flammability, and Electrical Typical Properties.
Published: 1/20/2009
Last Edited: 1/11/2023
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