DuPont Mobility and Materials Crastin® SK642FR NC010 Polybutylene Terephthalate (PBT)

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DuPont Mobility and Materials Crastin® SK642FR NC010 Polybutylene Terephthalate (PBT) (discontinued **)
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), 20% Glass Fiber Filled
Material Notes:	15% Glass Reinforced Flame Retardant Polybutylene Terephthalate Crastin SK642FR is a 15% glass fibre reinforced flame retardant polybutylene terephthalate for injection moulding.It has a UL94 V-0 rating @ 1.5mm. While this product line has been acquired by Celanese, this specific grade had been disconued while still a DuPont product so it is listed here as a discontinued DuPont product.
Key Words:	PBT-GF15FR(17)
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Physical Properties	Original Value	Comments

Density	1.37 g/cc
	1.58 g/cc	ISO 1183
Water Absorption	0.33 % @Thickness 2.00 mm	Sim. to ISO 62
Moisture Absorption	0.140 % @Thickness 2.00 mm	Sim. to ISO 62
Viscosity	102700 cP @Shear Rate 5000 1/s, Temperature 260 °C	ISO 11403-1 -2
	122300 cP @Shear Rate 5000 1/s, Temperature 250 °C	ISO 11403-1 -2
	147800 cP @Shear Rate 5000 1/s, Temperature 240 °C	ISO 11403-1 -2
	310520 cP @Shear Rate 500 1/s, Temperature 260 °C	ISO 11403-1 -2
	375900 cP @Shear Rate 500 1/s, Temperature 250 °C	ISO 11403-1 -2
	460190 cP @Shear Rate 500 1/s, Temperature 240 °C	ISO 11403-1 -2
Linear Mold Shrinkage, Flow	0.0070 cm/cm	ISO 294-4 2577
	0.0080 cm/cm	annealed; ISO 294-4
Linear Mold Shrinkage, Transverse	0.012 cm/cm	ISO 294-4 2577
	0.015 cm/cm	annealed; ISO 294-4

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	100 MPa	ISO 527-1/-2
Elongation at Break	3.4 %	ISO 527-1/-2
Tensile Modulus	7200 MPa	ISO 527-1/-2
Flexural Strength	155 MPa	ISO 178
Izod Impact, Notched (ISO)	7.00 kJ/m²	ISO 180/1A
	6.00 kJ/m² @Temperature -30.0 °C	ISO 180/1A
Izod Impact, Unnotched (ISO)	33.0 kJ/m²	ISO 180/1U
	32.0 kJ/m² @Temperature -30.0 °C	ISO 180/1U
Charpy Impact Unnotched	53.0 kJ/m²	ISO 179/1eU
	44.0 kJ/m² @Temperature -30.0 °C	ISO 179/1eU
Charpy Impact, Notched	8.00 kJ/m²	ISO 179/1eA
	7.10 kJ/m² @Temperature -30.0 °C	ISO 179/1eA
Tensile Creep Modulus, 1 hour	6000 MPa @Time 3600 sec	ISO 899-1
Tensile Creep Modulus, 1000 hours	4800 MPa @Time 3.60e+6 sec	ISO 899-1

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	IEC 60093
Surface Resistance	1.00e+15 ohm	IEC 60093
Dielectric Constant	3.5 @Frequency 1e+6 Hz	IEC 60250
	3.7 @Frequency 100 Hz	IEC 60250
Dielectric Strength	28.0 kV/mm	IEC 60243-1
Dissipation Factor	0.0030 @Frequency 100 Hz	IEC 60250
	0.017 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	250 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	50.0 µm/m-°C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	110 µm/m-°C	ISO 11359-1/-2
Specific Heat Capacity	1.74 J/g-°C
Thermal Conductivity	0.270 W/m-K	of melt
Melting Point	225 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	218 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	203 °C	ISO 75-1/-2
Vicat Softening Point	207 °C	50°C/h 50N; ISO 306
Flammability, UL94	V-0 @Thickness 1.50 mm	IEC 60695-11-10
	V-0 @Thickness 0.800 mm	IEC 60695-11-10
Oxygen Index	31 %	ISO 4589-1/-2

Descriptive Properties
Delivery form	Pellets
Part Marking Code	>PBT-GF15FR(17)<	ISO 11469
Processing	Injection Molding
Regional Availability	Asia Pacific
	Europe
	Global
	Near East/Africa
	North America
	South and Central America
Resin Identification	PBT-GF15FR(17)
UL recognition	UL

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PZDSY5083 / 160910

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