Category | Polymer , Thermoplastic , Acrylic (PMMA) |
Manufacturer | Spartech |
Trade Name | Polycast |
Port | Shanghai port,China |
Trade Terms | FOB, CFR, CIF |
Payment Terms | L/C, T/T, Western Union |
Download PDF | Spartech Polycast Cell Cast Acrylic.pdf ![]() |
Price | EMAIL US sales@lookpolymers.com |
Physical Properties | Metric | English | Comments |
---|---|---|---|
Specific Gravity | 1.19 g/cc | 1.19 g/cc | ASTM D792 |
Water Absorption | 0.20 % | 0.20 % | 24 hr immersion |
Water Absorption at Saturation | 0.65 % | 0.65 % | 26 day immersion |
Mechanical Properties | Metric | English | Comments |
---|---|---|---|
Hardness, Barcol | 50 | 50 | ASTM D2583 |
Hardness, Rockwell M | 98 | 98 | ASTM D785 |
Tensile Strength, Yield | 77.57 MPa | 11250 psi | ASTM D638 |
Elongation at Break | 6.4 % | 6.4 % | ASTM D638 |
Tensile Modulus | 3.10 GPa | 450 ksi | ASTM D638 |
Flexural Strength | 105.1 MPa | 15250 psi | ASTM D790 |
Flexural Modulus | 3.28 GPa | 475 ksi | ASTM D790 |
Compressive Yield Strength | 124 MPa | 18000 psi | ASTM D695 |
Compressive Modulus | 3.03 GPa | 440 ksi | ASTM D695 |
Shear Strength | 62.1 MPa | 9000 psi | ASTM D732 |
Izod Impact, Notched | 0.200 J/cm | 0.375 ft-lb/in | ASTM D882 |
Impact | 18 | 18 | inches, Falling 0.5 lb Steel Ball Breakage Height; ASTM D256 |
Taber Abrasion, mg/1000 Cycles | 14 | 14 | 500 g each wheel, 100 rev ANSI Z26.1; ASTM D1044 |
Compression Set | 0.75 % @Temperature 50.0 °C |
0.75 % @Temperature 122 °F |
4000 psi, 24 hr (Compression Deformation); ASTM D621 |
Thermal Properties | Metric | English | Comments |
---|---|---|---|
CTE, linear | 75.6 µm/m-°C @Temperature 20.0 °C |
42.0 µin/in-°F @Temperature 68.0 °F |
ASTM D696 |
Specific Heat Capacity | 1.46 J/g-°C @Temperature 25.0 °C |
0.350 BTU/lb-°F @Temperature 77.0 °F |
Dupont 900 (Therm. An. Cal.) |
Thermal Conductivity | 0.187 W/m-K | 1.30 BTU-in/hr-ft²-°F | Cento-Fitch |
Maximum Service Temperature, Air | 82.2 °C | 180 °F | |
Deflection Temperature at 0.46 MPa (66 psi) | 110 °C | 230 °F | ASTM D648 |
Deflection Temperature at 1.8 MPa (264 psi) | 95.0 °C | 203 °F | ASTM D648 |
Flame Spread | 30 mm/min | 1.2 in/min | Burning Rate UL 94 HB; ASTM D635 |
Flash Point | 443 °C | 830 °F | Self Ignition Temperature; ASTM D1929 |
Shrinkage | 2.2 % | 2.2 % | Residual Shrinkage (Internal Strain) Polycast; ASTM D4802 |
Optical Properties | Metric | English | Comments |
---|---|---|---|
Refractive Index | 1.49 | 1.49 | ASTM D542 |
Haze | <= 0.50 % | <= 0.50 % | As Cast; ASTM D1003 |
<= 0.50 % | <= 0.50 % | After 1000 hrs. Accelerated Weathering (No effect on Crazing, Discoloration, or Warping); ASTM D1449 | |
Yellow Index | 0.50 % | 0.50 % | As Cast; ASTM D1925 |
Transmission, Visible | 92 % | 92 % | As Cast; ASTM D1003 |
92 % | 92 % | After 1000 hrs. Accelerated Weathering; ASTM D1449 | |
UV Transmittance | 0.00 % @Wavelength 320 nm |
0.00 % @Wavelength 320 nm |
Processing Properties | Metric | English | Comments |
---|---|---|---|
Processing Temperature | 160 °C | 320 °F | Hot Forming Temperature |
Descriptive Properties | Value | Comments |
---|---|---|
Craze Resistance to IPA (Dry) | 2000 psi | Mil-P-8184 |
Craze Resistance to IPA (Wet) | 500 psi | Mil-P-8184 |
Craze Resistance to Lacquer Thinner (Dry) | 1000 psi | Mil-P-8184 |
Craze Resistance to Lacquer Thinner (Wet) | 0 psi | Mil-P-8184 |
Craze Resistance to Sulfuric Acid (Dry) | 0 psi | Mil-P-8184 |
Craze Resistance to Sulfuric Acid (Wet) | 0 psi | Mil-P-8184 |
Mar Resistance | 29 | ASTM D637 |
Smoke Density | 27% | ASTM D2843 |