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- A. Schulman COMTUF® 420 Impact Modified PBT
A. Schulman COMTUF® 420 Impact Modified PBT
| Category | Polymer , Thermoplastic , Polyester, TP , Polybutylene Terephthalate (PBT) , Polybutylene Terephthalate (PBT), Impact Grade |
| Manufacturer | |
| Trade Name | |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | A. Schulman COMTUF® 420 Impact Modified PBT.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Information provided by A. Schulman.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 1.26 g/cc | 1.26 g/cc | ASTM D792 |
| Linear Mold Shrinkage | 0.018 cm/cm @Thickness 3.175 mm |
0.018 in/in @Thickness 0.1250 in |
ASTM D955 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength at Break | 27.6 MPa | 4000 psi | ASTM D638 |
| Elongation at Break | 34.2 % | 34.2 % | ASTM D638 |
| Flexural Strength | 61.4 MPa | 8900 psi | ASTM D790 |
| Flexural Modulus | 1.65 GPa | 240 ksi | ASTM D790 |
| Izod Impact, Notched | 8.12 J/cm | 15.2 ft-lb/in | ASTM D256 |
| Izod Impact, Unnotched | NB | NB | ASTM D4812 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Deflection Temperature at 0.46 MPa (66 psi) | 154 °C | 309 °F | ASTM D648 |
| Deflection Temperature at 1.8 MPa (264 psi) | 55.6 °C | 132 °F | ASTM D648 |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Melt Temperature | 250 - 260 °C | 482 - 500 °F | |
| Mold Temperature | 30.0 - 65.6 °C | 86.0 - 150 °F | |
| Drying Temperature | 130 °C | 266 °F | |
| Dry Time | 2 - 4 hour | 2 - 4 hour | Predrying |
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