Written by AZoMSep 4 2001
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Polymer Type |
| Thermoplastic |
Advantages |
| Transparent, good surface finish, good outdoor weathering properties and rigidity. Good electrical insulating properties at low frequency. Resistant to alkalis. Easily machineable using drills, saws, and the like. Low mould shrinkage (~ 0.8%), thermoformable. |
Disadvantages |
| Poor scratch resistance, dissolved by a number of organic solvents - organic materials that are not solvents for acrylic can cause cracking and crazing. Attacked by mineral acids. Difficult to weld but can be satisfactorily solvent cemented. Not suitable for normal vacuum forming operations. |
Typical Properties |
| | | Density (g/cm3) | 1.19 | | Surface Hardness | RM104 | | Tensile Strength (MPa) | 72 | | Flexural Modulus (GPa) | 3.1 | | Notched Izod (kJ/m) | 0.02 | | Linear Expansion (/°C x 10-5) | 6 | | Elongation at Break (%) | 4 | | Strain at Yield (%) | N/A | | Max. Operating Temp. (°C) | 50 | | Water Absorption (%) | 0.2 | | Oxygen Index (%) | 18 | | Flammability UL94 | HB | | Volume Resistivity (log ohm.cm) | 17 | | Dielectric Strength (MV/m) | 20 | | Dissipation Factor 1kHz | 0.04 | | Dielectric Constant 1kHz | 3.3 | | HDT @ 0.45 MPa (°C) | 107 | | HDT @ 1.80 MPa (°C) | 96 | | Material. Drying hrs @ (°C) | NI | | Melting Temp. Range (°C) | NA | | Mould Shrinkage (%) | 0.04 | | Mould Temp. Range (°C) | NA | |
Applications |
| Glazing, illuminated and non-illuminated signs. Street lamp housings, coach roof lights, guards for machines and food displays. Bath and washbasins. Covers on solar panels |
| Source : Abstracted from Plascams For more information on Plascams please visit RAPRA Technology Ltd. |