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Ensinger PEI

Röhm ACRYLITE® GMU Cast Acrylic Sheet
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Cast

Material Notes: ACRYLITE® GMU sheet is a cell cast acrylic sheet designed for general aviation and helicopter window applications and is superior to standard cell cast acrylics in both optical quality and thickness tolerance. It is manufactured using the same process and the exacting optical requirements as product manufactured to meet MIL P-8184F and MIL P-5425E. ACRYLITE® GMU sheet is a good choice for meeting the difficult optical requirements of MIL P-8184F and P-5425E, but is more economical and ideal for many non-military aircraft applications.

Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.

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Physical PropertiesMetricEnglishComments
Density 1.19 g/cc0.0430 lb/in³ASTM D729
Water Absorption 0.80 %0.80 %ASTM D570
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 68.1 MPa9880 psiASTM D638
Elongation at Yield 4.2 %4.2 %ASTM D638
 
Thermal PropertiesMetricEnglishComments
CTE, linear 198 µm/m-°C110 µin/in-°FASTM D969
Deflection Temperature at 1.8 MPa (264 psi) 115 °C239 °FASTM D648
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 92 %92 %ASTM D1003

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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