Written by AZoMAug 21 2001
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Advantages |
| Improved moulding characteristics over continuous reinforcement. |
Disadvantages |
| Inferior maximum operating temperature, tensile strength, flexural modulus, notched impact, heat distortion temperature and surface hardness compared to woven glass roving polyester laminates. Approximately three times more expensive than SMC. |
Typical Properties |
| | | Density (g/cm3) | 1.4 | | Surface Hardness | RM90 | | Tensile Strength (MPa) | 100 | | Flexural Modulus (GPa) | 7 | | Notched Izod (kJ/m) | 0.7 | | Linear Expansion (/°C x 10-5) | 3 | | Elongation at Break (%) | 1.5 | | Strain at Yield (%) | N/A | | Max. Operating Temp. (°C) | 125 | | Water Absorption (%) | 0.3 | | Oxygen Index (%) | 20 | | Flammability UL94 | HB | | Volume Resistivity (log ohm.cm) | 14 | | Dielectric Strength (MV/m) | 13 | | Dissipation Factor1kHz | 0.2 | | Dielectric Constant 1kHz | 5 | | HDT @ 0.45 MPa (°C) | 260+ | | HDT @ 1.80 MPa (°C) | 215 | | Material Drying hrs @ °C | NA | | Melting Temp. Range (°C) | N/A | | Mould Shrinkage (%) | N/A | | Mould Temp. Range (°C) | N/A | |
Applications |
| Low to medium strength mouldings, such as electrical and appliance parts. Ordnance components. |
| Source : Abstracted from Plascams For more information on Plascams please visit The Rubber and Plastics Research Association |