Crastin® LW9020 NC010

Alternative and trade names
PBT+ASA-GF20
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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® LW9020 NC010 is a 20% glass fiber reinforced polybutylene terephthalateblend for injection molding. It has improved surface aesthetics, excellent dimensional stability and low warpage characteristics.

This material data has been provided by Matmatch.

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

1.35 g/cm³

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ISO 1183

Water absorption

23.0 °C

0.78 %

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Sim. to ISO 62 | 80mil

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

7 GPa

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ISO 527-1/-2

Elongation

23.0 °C

2.9 %

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ISO 527-1/-2

Flexural modulus

23.0 °C

6.3 GPa

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ISO 178

Flexural strength

23.0 °C

170 MPa

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ISO 178

Impact strength, Charpy notched

-6.0 °C

7.5 kJ/m²

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ISO 179/1eA

23.0 °C

9.5 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

-6.0 °C

43 kJ/m²

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ISO 179/1eU

23.0 °C

60 kJ/m²

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ISO 179/1eU

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Impact strength, Izod notched

-30.0 °C

50 kJ/m²

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ISO 180/1U

23.0 °C

50 kJ/m²

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ISO 180/1U

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Impact strength, Izod unnotched

-30.0 °C

7 kJ/m²

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ISO 180/1A

23.0 °C

8 kJ/m²

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ISO 180/1A

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Poisson's ratio

23.0 °C

0.35 [-]

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Tensile strength

23.0 °C

110 MPa

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ISO 527-1/-2

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

3E-5 1/K

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ISO 11359-1/-2

Coefficient of thermal expansion, transverse

23.0 °C

1E-4 1/K

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ISO 11359-1/-2

Glass transition temperature

110 °C

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ISO 11357-1/-2 | 18°F/min

Heat deflection temperature, 0.45 MPa

210 °C

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ISO 75-1/-2

Heat deflection temperature, 1.80 MPa

150 °C

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ISO 75-1/-2

Melting point

225 °C

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ISO 11357-1/-3 | 18°F/min

Relative temperature index, electrical

130 °C

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UL 746B | 240mil

Relative temperature index, mechanical impact

130 °C

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UL 746B | 240mil

Relative temperature index, mechanical strength

130 °C

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UL 746B | 240mil

Specific heat capacity

23.0 °C

1850 J/(kg·K)

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of melt

Vicat softening temperature

145 °C

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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: 19 %, Glow Wire Flammability Index, 120mil: 650 °C, Glow Wire Ignition Temperature, 120mil: 700 °C, FMVSS Class: B -, Burning rate, Thickness 1 mm: 38 mm/min

Electrical

PropertyTemperatureValueComment

Comparative tracking index

23.0 °C

550 V

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IEC 60112

Dielectric constant, 100Hz

23.0 °C

3.7 [-]

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IEC 62631-2-1

Dielectric constant, 1MHz

23.0 °C

3.4 [-]

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IEC 62631-2-1

Dielectric strength

23.0 °C

20 kV/mm

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IEC 60243-1 | Short Time, 2mm

Dissipation factor, 100Hz

23.0 °C

2E-3 [-]

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IEC 62631-2-1

Dissipation factor, 1MHz

23.0 °C

0.02 [-]

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IEC 62631-2-1

Surface resistivity

23.0 °C

1.00E+14 Ω/sq

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IEC 62631-3-2

Volume resistivity

23.0 °C

1.00E+15 Ω·cm

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min. | IEC 62631-3-1

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

15 g/10min

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ISO 1133 | 250°C/5kg

Shrinkage

23.0 °C

0.3 %

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ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

0.7 %

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ISO 294-4, 2577

Technological properties

Property
Fillers

20% 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