Acrylic is a thermoplastic polymer. It is a light-weight material which can be used in a variety of applications as a more-durable glass substitute.  Some trade names for acrylic are ACRYLITE®, DURAPLEX®, Fabback®, Excelon™, Lucite®, OPTIX®, Perspex®, Plexiglass®, Polycast®, and KSH®

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - 7.4 ksi
Specific Gravity @73 F D792 1.19 -
Tensile Strength @73 F, (ult)/(yld) D638 8,800 (ult) psi
Tensile Modulus of Elasticity @73 F D638 470,000 psi
Tensile Elongation at Break @73 F D638 - %
Flexural Strength @73 F D790 14,200 psi
Flexural Modulus of Elasticity @73 F D790 - psi
Shear Strength @73 F D732 - psi
Comprehensive Strength, (% Deformation) @73 F D695 13,700 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 - psi
Hardness, Rockwell, Scale as noted @73 F D785 M86 -
Hardness, Durometer, Shore D @73 F D2240 - -
Izod Impact, (Notched) @73 F D256 Type A 0.4 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - - -
Limiting PV, (with 4 to 1 factor of safety applied) - - psi-ft/min
Thermal ASTM Test Method Value Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 4.0E-05 in/in/F
Heat Deflection Temperature @264 psi D648 165 F
Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 - F
Continuous Service Temperature in Air, (Max.) - - F
Thermal Conductivity - - BTU-in/hr-ft2-F
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 450 Volts/mil
Volume Resistivity D257 1.0E+15 ohm-cm
Dielectric Constant @10E6 Hz D150 - -
Dissipation Factor @10E6 Hz D150 - -
Flammability @3.1 mm unless noted UL94 HB (6.10mm) -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) 0.30 % by weight
Water Absorption, Saturation D570(7) 0.70 % by weight