DuPont Performance Polymers Crastin® SK645FR BK851 PBT (Unverified Data**)

Category	Polymer , Thermoplastic , Polyester, TP , Polybutylene Terephthalate (PBT) , Polybutylene Terephthalate (PBT), 30% Glass Fiber Filled
Manufacturer
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	DuPont Performance Polymers Crastin® SK645FR BK851 PBT (Unverified Data**).pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Crastin® SK645FR BK851 is a flame retardant , 30% glass reinforced black polybutylene terephthalate molding resin. It is recognized as UL94V-0 at 0.75mm.Information provided by DuPont Performance Polymers

Physical Properties	Metric	English	Comments
Density	1.69 g/cc	0.0611 lb/in³	ISO 1183
Linear Mold Shrinkage, Flow	0.0044 cm/cm @Thickness 2.00 mm	0.0044 in/in @Thickness 0.0787 in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.0124 cm/cm @Thickness 2.00 mm	0.0124 in/in @Thickness 0.0787 in	ISO 294-4

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	114 MPa @Temperature 23.0 °C	16500 psi @Temperature 73.4 °F	ISO 527
Elongation at Break	2.6 % @Temperature 23.0 °C	2.6 % @Temperature 73.4 °F	ISO 527
Tensile Modulus	10.33 GPa @Temperature 23.0 °C	1498 ksi @Temperature 73.4 °F	ISO 527
Flexural Strength	180 MPa @Temperature 23.0 °C	26100 psi @Temperature 73.4 °F	ISO 178
Charpy Impact Unnotched	5.00 J/cm² @Temperature 23.0 °C	23.8 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eU
Charpy Impact, Notched	0.800 J/cm² @Temperature 23.0 °C	3.81 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA

Thermal Properties	Metric	English	Comments
Melting Point	225 °C	437 °F	10°C/min; ISO 11357-1/-3
UL RTI, Electrical	140 °C @Thickness 0.750 mm	284 °F @Thickness 0.0295 in	UL 746B
UL RTI, Mechanical with Impact	125 °C @Thickness 0.750 mm	257 °F @Thickness 0.0295 in	UL 746B
UL RTI, Mechanical without Impact	140 °C @Thickness 0.750 mm	284 °F @Thickness 0.0295 in	UL 746B
Flammability, UL94	V-0 @Thickness 0.750 mm	V-0 @Thickness 0.0295 in	UL94

Processing Properties	Metric	English	Comments
Melt Temperature	240 - 260 °C	464 - 500 °F
Mold Temperature	80.0 °C	176 °F	optimum
	30.0 - 130 °C	86.0 - 266 °F
Drying Temperature	110 - 130 °C	230 - 266 °F
Moisture Content	<= 0.040 %	<= 0.040 %

Descriptive Properties	Value	Comments
Appearance	Black Color
Features	Flame Retardant
Forms	Pellets
Generic	PBT
Material Status	Current
Part Marking Code	>PBT-GF30(17)<	ISO 11469
Processing Method	Injection Molding
Product Category	Flame Retardant Resins
	Glass Reinforced Resins
Region Available - Global	Yes
Resin Identification	PBT-GF30(17)	ISO 1043
RoHS Compliance	Contact Manufacturer

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