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 |