| 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 UVT (Ultra-Violet Transmitting) 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 |
| 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 |
| Transmission, Visible | 92 % | 92 % | As Cast; ASTM D1003 |
| UV Transmittance | >= 80 % @Wavelength 320 nm |
>= 80 % @Wavelength 320 nm |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Processing Temperature | 160 °C | 320 °F | Hot Forming Temperature |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Smoke Density | 27% | ASTM D2843 |