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MAKROLON® GP Polished Polycarbonate Sheets

MAKROLON® GP polycarbonate sheet is a polished surface, UV stabilized polycarbonate for use in glazing and industrial applications.

Offering economy and high performance, MAKROLON GP polycarbonate sheet meets or exceeds the physical properties of any product in its class. MAKROLON GP polycarbonate sheet is backed by a five year warranty against breakage.

Applications:

MAKROLON GP polycarbonate sheet is used extensively in school and factory glazing for protection against both accidental breakage and deliberate vandalism. In manufacturing environments, this high impact material excels in applications like machine guards, noise abatement shields, clear work station partitions, freight doors, and other in-plant glazing.

Code Compliance

MAKROLON polycarbonate sheet products satisfy major building code requirements for a CC-1 rating in construction applications (BOCA, ICBO, SBCCI, and Dade County). MAKROLON polycarbonate sheet products are listed with Underwriters Laboratories for the UL flammability standard and the UL972 standard for burglary resistant glazing materials. Additionally, MAKROLON polycarbonate sheet is approved for Consumer Product Safety Commission (CPSC 16CFR 1201) categories I & II and ANSI Z97. 1-1984 Safety Glazing Standards.

Impact Resistance

Typical Physical Properties

Property Test Method Units MAKROLON
PHYSICAL
Specific Gravity ASTM D792 - 1.2
Refractive Index @ 72°F ASTM D542 - 1.586
Light Transmission, Clear 1/8" ASTM D1003 % 86
Light Transmission, Gray/Bronze ASTM D1003 % 50
Light Transmission, Dark Gray ASTM D1003 % 18
Rockwell Hardness ASTM D785 - M70/R118
Water Absorption, Equilibrium, 24 hrs ASTM D570 % 0.15
MECHANICAL
Tensile Strength, Yield ASTM D638 psi 9000
Tensile Strength, Ultimate ASTM D638 psi 9,500
Tensile Modulus ASTM D638 psi 345000
Flexural Strength ASTM D790 psi 13,500
Flexural Modulus ASTM D790 psi 345000
Compressive Strength ASTM D695 psi 12,500
Compressive Modulus ASTM D695 psi 345000
Elongation ASTM D638 % 110
Poisson's Ratio - - 0.38
Izod Impact Strength, Notched @ 1/8" ASTM D256 Ft-lbs/in 12-16
Izod Impact Strength, Unnotched @ 1/8" ASTM D256 Ft-lbs/in 60 (No failure)
Instrumented Impact, 1/8˝ ASTM D3763 Ft-lbs >45
Shear Strength, @ Yield ASTM D732 psi 6000
Shear Strength, Ultimate ASTM D732 psi 10000
Shear Modulus ASTM D732 psi 114000
THERMAL
Coefficient of Thermal Expansion ASTM D696 In/in/F 3.75 x 10-5
Coefficient of Thermal Conductivity ASTM C177 Btu-in/hr-ft2-F 1.35
Heat Deflection Temperature, @ 264 psi ASTM D648 F 270
Heat Deflection Temperature, @ 66 psi ASTM D648 F 280
Brittle Temperature ASTM D746 F -200
Shading Coefficient, Clear 1/8˝ ASHRAE - 1.02
Shading Coefficient Gray, Bronze 1/8˝ ASHRAE - 0.7
U Value 1/4˝ (summer gain, winter loss) - - 0.90, 0.96
ELECTRICAL
Dieletric Constant, @ 10 Hz ASTM D150 - 2.96
Dieletric Constant, @ 60 Hz ASTM D150 - 3.17
Volume Resistivity ASTM D257 Ohm-cm 8.2 x 1015
Dissipation Factor, @ 60 Hz ASTM D150 - 0.0009
Dissipation Factor, @ 1 Hz ASTM D150 - 0.01
Arc Resistance ASTM D495 Seconds
    S. Steel Strip Electrode 10-11
    Tungsten Electrode 120
Dielectric Strength, in air, 125 mils ASTM D149 V/mil 380
FLAMMABILITY
Horizontal Burn, AEB ASTM D635 Inches <1
Ignition Temperature, Self ASTM D1929 F 1070
Ignition Temperature, Flash ASTM D1929 F 870
UL 94, Clear @ .060˝ UL 94 - V2
UL 94, Clear @ .220˝ UL 94 - V0

Sheffield Plastics Inc. will not be responsible for the use of this information relative to actual application. Users must make their own determination of its suitability for their specific application. No warranty is made for the fitness of any product, and nothing herein waives any of the seller’s conditions of sale.