Acrylic Cast


What is the Material: Acrylic Cast is an amorphous material.

Key Material Features: This material is beneficial in applications requiring transparency, strength, dimensional stability, and weather resistance.

Other Considerations: It is also available as an extruded material, which is lower cost, but lesser quality than cast acrylic material in both optical and physical properties.



Property Value Typical ASTM Test
Chemical Designation (PMMA) Polymethyl methacrylate
Trade Names (®, ™) Plexiglas, Optix
Color Clear, Colored Options
Density (g/cm^3) 1.19 D 792


Property Value Typical ASTM Test
Modulus of Elasticity (Tensile Test) (psi) 400000 D 638
Tensile Strength at Yield (psi) 10500 D 638
Tensile Strength at Break (psi) 10500 D 638
Elongation at Break (%) 4.9 D 638
Flexural Strength (psi) 16000 D 790
Modulus of Elasticity (Flexural Test) (psi) 450000 D 790
Compression Strength: 10% Strain (psi) 14000 D 695
Impact Strength (Izod) (ft-lbs/in) 0.3 D 256
Hardness (M) 100 D 785


Property Value Typical ASTM Test
Melting Point (°F) 300 D 3418
Deflection Temperature (°F) (66 psi) 207 D 648
Deflection Temperature (°F) (264 psi) 205 D 648
Service Temperature Continuous (°F) 190
Thermal Expansion (CLTE) (in/in/°F) 3.90E-5 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 1.3
Specific Heat (BTU/lb-°F) 0.35


Property Value Typical ASTM Test
Dielectric Strength (V/mil) 400 D 149
Dissipation Factor (60 Hz) 0.06 D 150
Dielectric Constant (60 Hz and 50% RH) 3.6 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 0.2 D 570
Moisture Absorption (%) (Saturated) 0.8 D 570
Light Transmission (%) 92 D1008
Flammability HB
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.