Celanese Crastin® FG6134 NC010 PBT

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Celanese Crastin® FG6134 NC010 PBT
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Unreinforced Medium Viscosity Polybutylene Terephthalate Developed for Food Contact Applications Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Original Value	Comments

Density	1.30 g/cc	ISO 1183
Viscosity Measurement	0.95	Intrinsic viscosity; ISO 307, 1157, 1628
Linear Mold Shrinkage, Flow	0.016 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.016 cm/cm	ISO 294-4, 2577
Melt Flow	32 g/10 min @Load 2.16 kg, Temperature 250 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	59.0 MPa	ISO 527-1/-2
Elongation at Break	45 %	Nominal; ISO 527-1/-2
Elongation at Yield	4.0 %	ISO 527-1/-2
Tensile Modulus	2600 MPa	ISO 527-1/-2
Flexural Strength	85.0 MPa	ISO 178
Poissons Ratio	0.38
Izod Impact, Notched (ISO)	3.50 kJ/m² @Temperature 23.0 °C	ISO 180/1A
Charpy Impact, Notched	4.00 kJ/m² @Temperature 23.0 °C	ISO 179/1eA

Thermal Properties	Original Value	Comments
Melting Point	225 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	115 °C	ISO 75-1/-2
	180 °C	Annealed; ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	ISO 75-1/-2
	60.0 °C	Annealed; ISO 75-1/-2
Glass Transition Temp, Tg	55.0 °C	10°C/min; ISO 11357-1/-2
Flammability, UL94	HB @Thickness 1.50 mm	IEC 60695-11-10
Flame Spread	<= 80.0 mm/min @Thickness 1.00 mm	ISO 3795 (FMVSS 302)
Oxygen Index	22 %	ISO 4589-1/-2

Processing Properties	Original Value	Comments
Melt Temperature	250 °C	Optimum, Injection
	250 °C	Optimum, Extrusion
	240 - 260 °C	Range, Extrusion
	240 - 260 °C	Range, Injection
Mold Temperature	80.0 °C	Optimum, Injection
	30.0 - 130 °C	Injection
Ejection Temperature	170 °C	Injection
Drying Temperature	120 °C	Injection
	110 - 130 °C	Extrusion
Dry Time	2.00 - 4.00 hour	Extrusion, Dehumidified Dryer
	2.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.040 %	Extrusion
	<= 0.040 %	Injection
Hold Pressure	>= 60.0 MPa	Injection

Descriptive Properties
Back pressure	As low as possible
Drying Recommended	yes	Injection
FMVSS Class	B	ISO 3795 (FMVSS 302)
Part Marking Code	>PBT<	ISO 11469
Polymer	PBT
Processing Hold Pressure Time (s/mm)	4	Injection
Resin Identification	PBT	ISO 1043

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PDSX5012 / 197652

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