Gromax PBT 2100-104B

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Gromax PBT 2100-104B
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Unreinforced, Molded
Material Notes:	Product Description: PBT unreinforced flame-retarded injection molding grade. Characteristics: Excellent electrical property Excellent mechanic and chemical property Excellent weatherability Excellent wear property Excellent moldability High resistance to fuels, oil, fats and many solvents High toughness Information provided by Gromax Enterprises Corp.
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Physical Properties	Original Value	Comments

Specific Gravity	1.35 g/cc	ASTM D792
Moisture Absorption	0.0500 % @Time 86400 sec	ASTM D570
Linear Mold Shrinkage	0.0080 - 0.016 cm/cm @Thickness 1.60 mm	horizontal; ASTM D955
	0.010 - 0.018 cm/cm @Thickness 1.60 mm	vertical; ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	118	ASTM D785
Tensile Strength	350 kg(f)/cm²	ASTM D638
Elongation at Break	5.5 %	ASTM D638
Flexural Strength	55.0 MPa	ASTM D790
Flexural Modulus	17500 kg(f)/cm²	ASTM D790
Izod Impact, Notched	>= 5.50 kg-cm/cm @Thickness 6.35 mm	ASTM D256

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+15 ohm-cm	ASTM D257
Surface Resistance	1.00e+13 ohm	ASTM D257
Dielectric Constant	3.2 @Frequency 60 Hz	ASTM D150
Dielectric Strength	20.0 kV/mm @Thickness 2.00 mm	ASTM D149
Dissipation Factor	0.0010 @Frequency 60 Hz	ASTM D150
Arc Resistance	80 sec	ASTM D495

Thermal Properties	Original Value	Comments
CTE, linear	90.0 µm/m-°C	ASTM D696
Melting Point	225 °C	DSC
Deflection Temperature at 0.46 MPa (66 psi)	150 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	55.0 °C	ASTM D648
Flammability, UL94	V-0 @Thickness 0.800 mm

Processing Properties	Original Value	Comments
Processing Temperature	230 - 270 °C
Nozzle Temperature	250 - 270 °C
Mold Temperature	40.0 - 120 °C	suitable temperature 40-60°C
Injection Pressure	50.0 - 120 MPa
Hold Pressure	30.0 - 80.0 MPa
Back Pressure	0.000 - 0.300 MPa
Screw Speed	60 - 120 rpm	to be chosen in such a way that plasticizing time is just within cooling time

Descriptive Properties
Injection Rate	middle-fast

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PGROM023 / 147836

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