Celanese Celanex® XFR 6842 GF10 PBT, 30% Glass Reinforced

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Celanese Celanex® XFR 6842 GF10 PBT, 30% Glass Reinforced
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 30% Glass Fiber Filled
Material Notes:	Celanex XFR 6842 GF10 is a halogen and antimony free flame retardant (V-0 @ 0.4 mm) 10% glass reinforced PBT grade with good processability and no corrosive emissions during processing. It is suitable for parts requiring enhanced tracking resistance, tou Information provided by Celanese Corporation.
Key Words:	Halogen Free, 10% glass filled, flame retardant PBT
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Physical Properties	Original Value	Comments

Density	1.40 g/cc	ISO 1183
Linear Mold Shrinkage, Flow	0.011 - 0.013 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.010 - 0.012 cm/cm	ISO 294-4

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	81	ISO 2039-2
Tensile Strength at Break	70.0 MPa	5mm/min; ISO 527-2/1A
Elongation at Break	3.4 %	5mm/min; ISO 527-2/1A
Tensile Modulus	5100 MPa	1mm/min; ISO 527-2/1A
Izod Impact, Notched (ISO)	4.50 kJ/m²	ISO 180/1A
Charpy Impact Unnotched	30.0 kJ/m²	ISO 179/1eU
Charpy Impact, Notched	4.20 kJ/m²	ISO 179/1eA

Electrical Properties	Original Value	Comments
Volume Resistivity	3.00e+14 ohm-cm	IEC 60093
Surface Resistance	3.00e+15 ohm	IEC 60093
Dielectric Constant	2.9 @Frequency 1e+6 Hz	IEC 60250
Dissipation Factor	0.014 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	450 V	IEC 60112

Thermal Properties	Original Value	Comments
Melting Point	225 °C	ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	173 °C	ISO 75-1, -2
Vicat Softening Point	205 °C	B50 (50°C/h 50N); ISO 306
Flammability, UL94	V-0 @Thickness 0.400 mm

Descriptive Properties
Melt volume rate (MVR), cm³/10min	12
MVR test load, kg	2.16
MVR test temperature, °C	250

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