Natural Bakelite Powder(SI-163)
Product Name: | Phenolic Resin Powder - Natural |
Grade: | SI-163 |
Molding Process: | Compression,Transfer |
Features: | Improved Heat Resistance, Surface Finish and Mould Stability |
Filler: | Chopped Fabric |
Grade SI-163 is a chopped fabric filled, P.F. moulding compound. It has good surface finish and high gloss. The mould should be provided with loading chamber taking into consideration and high bulk factor.
Specification: | ||
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Powder Properties : | Unit | Typical value |
Apparent Density | gm/ml | 0.2-0.3 |
Bulk Factor | —- | 4.60-7.0 |
Shrinkage | cm/cm | 0.003-0.006 |
Pelleting | —- | Poor |
Physical Properties : | ||
Impact Strength | Kg-cm | 10.0-18.0 |
Tensile Strength | kg/cm2 | 400-500 |
Cross Breaking strength | kg/ cm2 | 670-770 |
Specific gravity | —- | 1.38-1.40 |
Plastic yield at 180°C | Mm | 4-6 |
Electrical Properties: | ||
Electrical Strength at 90 °C | V/mm | 1500-3000 |
Volume resistivity | log10 ohm-cm | 9.0-9.5 |
Surface resistivity | log10ohm | 8.9-9.2 |
Other Properties: | ||
Water absorption | Mg | 70-90 |
Coefficient of linear thermal expansion per °C | 0.000035-0.000045 | |
Rate of cure: | ||
Min. cure at 160°C | sec/mm | 50-80 |
Moulding conditions: | ||
Recommended moulding temp. | °C | 150-165 |
Recommended moulding pressure | kg/ cm2 | 250-450 |