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Typical Properties of Acrylic and Polycarbonate

Property

Test Method
Cast Acrylic
Extruded Acrylic
Polycarbonate

Mechanical Properties

Specific Gravity ASTM D792 1.19 1.19 1.2
Tensile Strength (p.s.i.) ASTM D638 10,000 10,000 9,500
Compressive Strength (p.s.i) ASTM D695 18,000 17,000 12,500
Rockwell Hardness ASTM D785 M-94 M-93 R-118
Impact Strength 73°F Notched (ft-lbs/in) ASTM D256 0.4 0.4 12-16

Thermal Properties

Heat Deflection at 264psi (°F) ASTM D648 210 195 270
Continuous Service Temperature (°F) - 180 160 250
Thermal Conductivity (BTU-in/ft²-hr-°F) ASTM C177 1.3 1.3 1.35
Coefficient of Linear Thermal Expansion (in/in/°F) ASTM D696 0.000034 0.000040 0.0000375

Electrical Properties

Dielectric Constant At 60HZ ASTM D150 3.5 3.6 3.17
Dissipation Factor At 60HZ ASTM D150 0.06 0.06 0.0009

Optical

Light Transmission ATSM D1003 92% 92% > 88%
Water Absorption Rates
Water Absorption -24 hrs.(%) ASTM D570 0.2% 0.2% 0.15%

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
 
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