Crastin® SK605 BK851

Alternative and trade names
PBT-GF30

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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® SK605BK851 is a 30% glass fiber reinforced, lubricated 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
Density	23.0 °C	1.53 g/cm³ Show Material materials with Density of 1.53 g/cm³	ISO 1183
Water absorption	23.0 °C	0.35 % Show Material materials with Water absorption of 0.35 %	Sim. to ISO 62 \| 80mil

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	10 GPa Show Material materials with Elastic modulus of 10 GPa	ISO 527-1/-2
Elongation	23.0 °C	2.7 % Show Material materials with Elongation of 2.7 %	ISO 527-1/-2
Flexural modulus	23.0 °C	9 GPa Show Material materials with Flexural modulus of 9 GPa	ISO 178
Flexural strength	23.0 °C	200 MPa Show Material materials with Flexural strength of 200 MPa	ISO 178
Hardness, Ball Indentation	23.0 °C	205 MPa Show Material materials with Hardness, Ball Indentation of 205 MPa	ISO 2039-1
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	23.0 °C	65 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 65 kJ/m²	ISO 179/1eU
Impact strength, Izod notched	-40.0 °C	55 kJ/m² Show Material materials with Impact strength, Izod notched of 55 kJ/m²	ISO 180/1U
	-30.0 °C	55 kJ/m² Show Material materials with Impact strength, Izod notched of 55 kJ/m²	ISO 180/1U
	23.0 °C	60 kJ/m² Show Material materials with Impact strength, Izod notched of 60 kJ/m²	ISO 180/1U

Impact strength, Izod unnotched	23.0 °C	9 kJ/m² Show Material materials with Impact strength, Izod unnotched of 9 kJ/m²	ISO 180/1A
Poisson's ratio	23.0 °C	0.34 [-] Show Material materials with Poisson's ratio of 0.34 [-]
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
Heat deflection temperature, 1.80 MPa		205 °C Show Material materials with Heat deflection temperature, 1.80 MPa of 205 °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 \| 240mil
Relative temperature index, mechanical impact		130 °C Show Material materials with Relative temperature index, mechanical impact of 130 °C	UL 746B \| 240mil
Relative temperature index, mechanical strength		130 °C Show Material materials with Relative temperature index, mechanical strength of 130 °C	UL 746B \| 240mil
Specific heat capacity	23.0 °C	1730 J/(kg·K) Show Material materials with Specific heat capacity of 1730 J/(kg·K)	of melt
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, 30mil: 725 °C, Glow Wire Flammability Index, 60mil: 725 °C, Glow Wire Flammability Index, 120mil: 750 °C, Glow Wire Ignition Temperature, 30mil: 750 °C, Glow Wire Ignition Temperature, 60mil: 750 °C, Glow Wire Ignition Temperature, 120mil: 775 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: 54 mm/min

Electrical

Property	Temperature	Value	Comment
Comparative tracking index	23.0 °C	225 V Show Material materials with Comparative tracking index of 225 V	IEC 60112

Rheological Properties

Property	Temperature	Value	Comment
Melt mass-flow rate		10 g/10min Show Material materials with Melt mass-flow rate of 10 g/10min	ISO 1133 \| 250°C/2.16kg
Melt volume-flow rate		7 cm³/10min Show Material materials with Melt volume-flow rate of 7 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	30% 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: 250°C, Min. melt temperature: 240°C, Max. melt temperature: 260°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® SK605 BK851

Description

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