Crastin® SK605LM BK591

Alternative and trade names
PBT-GF30
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Description

Crastin® SK605LM BK591 is a 30% Glass Reinforced, Laser Markable, Polybutylene Terephthalate

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

PropertyTemperatureValueComment

Density

23.0 °C

1.52 g/cm³

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ISO 1183

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

9.5 GPa

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ISO 527-1/-2

Elongation

23.0 °C

2.5 %

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ISO 527-1/-2

Flexural strength

23.0 °C

200 MPa

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ISO 178

Impact strength, Charpy notched

23.0 °C

10 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

23.0 °C

70 kJ/m²

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ISO 179/1eU

Poisson's ratio

23.0 °C

0.34 [-]

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Tensile strength

23.0 °C

130 MPa

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ISO 527-1/-2

Thermal

PropertyValueComment

Heat deflection temperature, 1.80 MPa

205 °C

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ISO 75-1/-2

Melting point

225 °C

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ISO 11357-1/-3 | 18°F/min

Flammability

Burning Behav. at 60mil nom. thickn.: HB class, Thickness tested: 1.5 mm, Burning Behav. at thickness h: HB class, Thickness tested: 0.75 mm, Oxygen index: 20 %, Glow Wire Flammability Index, 30mil: 725 °C, Glow Wire Flammability Index, 60mil: 725 °C, Glow Wire Flammability Index, 120mil: 825 °C, Glow Wire Ignition Temperature, 30mil: 750 °C, Glow Wire Ignition Temperature, 60mil: 750 °C, Glow Wire Ignition Temperature, 120mil: 800 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: 54 mm/min

Rheological Properties

PropertyTemperatureValueComment

Melt volume-flow rate

5 cm³/10min

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ISO 1133

Shrinkage

23.0 °C

0.3 %

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ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

1.1 %

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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