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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
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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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