Crastin® SK608 BK509

Alternative and trade names
PBT-GF45

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Description

Common features of Crastin® thermoplastic polyester resin include mechanical and physical properties such as stiffness and toughness, heat resistance, friction and wear resistance, excellent surface finishes and good colourability. Crastin® thermoplastic polyester resin has excellent electrical insulation characteristics and high arc-resistant grades are available. Many flame retardant grades have UL recognition (class V-0). Crastin® thermoplastic polyester resin typically has high chemical and heat ageing resistance. The good melt stability of Crastin® thermoplastic polyester resin normally enables the recycling of properly handled production waste.If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed. Crastin® thermoplastic polyester resin typically is used in demanding applications in the electronics, electrical, automotive, mechanical engineering, chemical, domestic appliances and sporting goods industry.Crastin® SK608 BK509 is a 45% glass fiber reinforced, lubricated, black polybutylene terephthalate resin for injection molding.

This material data has been provided by Matmatch.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value	Comment
Coefficient of friction		0.2 [-] Show Material materials with Coefficient of friction of 0.2 [-]	ASTM 1894 \| 1h against steel
Density	23.0 °C	1.66 g/cm³ Show Material materials with Density of 1.66 g/cm³	ISO 1183
Water absorption	23.0 °C	0.3 % Show Material materials with Water absorption of 0.3 %	Sim. to ISO 62 \| 80mil

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	14.2 GPa Show Material materials with Elastic modulus of 14.2 GPa	ISO 527-1/-2
Elongation	23.0 °C	2 % Show Material materials with Elongation of 2 %	ISO 527-1/-2
Flexural modulus	23.0 °C	13.3 GPa Show Material materials with Flexural modulus of 13.3 GPa	ISO 178
Flexural strength	23.0 °C	210 MPa Show Material materials with Flexural strength of 210 MPa	ISO 178
Impact strength, Charpy notched	23.0 °C	10 kJ/m² Show Material materials with Impact strength, Charpy notched of 10 kJ/m²	ISO 179/1eA
Impact strength, Charpy unnotched	-6.0 °C	65 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 65 kJ/m²	ISO 179/1eU
	23.0 °C	55 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 55 kJ/m²	ISO 179/1eU

Impact strength, Izod notched	-30.0 °C	50 kJ/m² Show Material materials with Impact strength, Izod notched of 50 kJ/m²	ISO 180/1U
Impact strength, Izod unnotched	-30.0 °C	10 kJ/m² Show Material materials with Impact strength, Izod unnotched of 10 kJ/m²	ISO 180/1A
	23.0 °C	10 kJ/m² Show Material materials with Impact strength, Izod unnotched of 10 kJ/m²	ISO 180/1A
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Poisson's ratio	23.0 °C	0.33 [-] Show Material materials with Poisson's ratio of 0.33 [-]
Tensile strength	23.0 °C	140 MPa Show Material materials with Tensile strength of 140 MPa	ISO 527-1/-2

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	2E-5 1/K Show Material materials with Coefficient of thermal expansion of 2E-5 1/K	ISO 11359-1/-2
Coefficient of thermal expansion, transverse	23.0 °C	8E-5 1/K Show Material materials with Coefficient of thermal expansion, transverse of 8E-5 1/K	ISO 11359-1/-2
Heat deflection temperature, 0.45 MPa		222 °C Show Material materials with Heat deflection temperature, 0.45 MPa of 222 °C	ISO 75-1/-2
Heat deflection temperature, 1.80 MPa		207 °C Show Material materials with Heat deflection temperature, 1.80 MPa of 207 °C	ISO 75-1/-2
Melting point		225 °C Show Material materials with Melting point of 225 °C	ISO 11357-1/-3 \| 18°F/min
Relative temperature index, electrical		130 °C Show Material materials with Relative temperature index, electrical of 130 °C	UL 746B \| 120mil
Relative temperature index, mechanical impact		125 °C Show Material materials with Relative temperature index, mechanical impact of 125 °C	UL 746B \| 120mil
Relative temperature index, mechanical strength		130 °C Show Material materials with Relative temperature index, mechanical strength of 130 °C	UL 746B \| 120mil
Vicat softening temperature		215 °C Show Material materials with Vicat softening temperature of 215 °C	ISO 306 \| 90°F/h, 11 lbf
Flammability	Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, UL recognition: yes -, Burning Behav. at thickness h: HB class, Thickness tested: 0.75 mm, UL recognition: yes -, Oxygen index: 20 %, Glow Wire Flammability Index, 120mil: 750 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: <80 mm/min

Electrical

Property	Temperature	Value	Comment
Comparative tracking index	23.0 °C	475 V Show Material materials with Comparative tracking index of 475 V	IEC 60112
Dielectric constant, 100Hz	23.0 °C	4.1 [-] Show Material materials with Dielectric constant, 100Hz of 4.1 [-]	IEC 62631-2-1
Dielectric constant, 1MHz	23.0 °C	3.9 [-] Show Material materials with Dielectric constant, 1MHz of 3.9 [-]	IEC 62631-2-1
Dielectric strength	23.0 °C	32 kV/mm Show Material materials with Dielectric strength of 32 kV/mm	IEC 60243-1
Dissipation factor, 100Hz	23.0 °C	3.8E-3 [-] Show Material materials with Dissipation factor, 100Hz of 3.8E-3 [-]	IEC 62631-2-1
Dissipation factor, 1MHz	23.0 °C	0.01 [-] Show Material materials with Dissipation factor, 1MHz of 0.01 [-]	IEC 62631-2-1
Volume resistivity	23.0 °C	1.00E+15 Ω·cm Show Material materials with Volume resistivity of 1.00E+15 Ω·cm	min. \| IEC 62631-3-1

Rheological Properties

Property	Temperature	Value	Comment
Melt mass-flow rate		6 g/10min Show Material materials with Melt mass-flow rate of 6 g/10min	ISO 1133 \| 250°C/5kg
Melt volume-flow rate		4 cm³/10min Show Material materials with Melt volume-flow rate of 4 cm³/10min	ISO 1133
Shrinkage	23.0 °C	0.3 % Show Material materials with Shrinkage of 0.3 %	ISO 294-4, 2577
Shrinkage, transverse	23.0 °C	1.1 % Show Material materials with Shrinkage, transverse of 1.1 %	ISO 294-4, 2577

Technological properties

Property
Fillers	45% Glass Fiber
Processing methods	Drying Recommended: yes, Drying Temperature: 120°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.04%, Melt Temperature Optimum: 260°C, Min. melt temperature: 250°C, Max. melt temperature: 270°C, Mold Temperature Optimum: 80°C, Min. mold temperature: 30°C, Max. mold temperature: 130°C, Hold pressure range: ≥60MPa, Hold pressure time: 3s/mm, Back pressure: As low as possible, Ejection temperature: 170°C

Crastin® SK608 BK509

Description

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