Rynite® 540SUV BK544

Alternative and trade names
PET-GF40
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Description

Common features of Rynite® thermoplastic polyester include mechanical and physical properties such as excellent balance of strength and stiffness, dimensional stability, creep resistance, heat resistance,high surface gloss and good inherent electrical properties at elevated temperature. It can be processed over a broad temperature range and has excellent flow properties. Rynite® thermoplastic polyester resins aretypically used in demanding applications in the automotive, electrical and electronics, appliances where they successfully replace metals and thermosets, as well as other thermoplastic polymers. Rynite® 540SUV BK544 is a 40% glass reinforced, UV stabilized, modified polyethylene terephthalate resin for injection molding and extrusion. It has high stiffness and was developed for long-term outdoor applications.

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

1.64 g/cm³

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ISO 1183

Water absorption

23.0 °C

0.6 %

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Sim. to ISO 62 | 80mil

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

13.5 GPa

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ISO 527-1/-2

Elongation

23.0 °C

2.3 %

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ISO 527-1/-2

Impact strength, Charpy notched

23.0 °C

8.8 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

23.0 °C

60 kJ/m²

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ISO 179/1eU

Poisson's ratio

23.0 °C

0.33 [-]

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Tensile strength

23.0 °C

162 MPa

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ISO 527-1/-2

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.7E-5 1/K

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ISO 11359-1/-2

Coefficient of thermal expansion, transverse

23.0 °C

7.5E-5 1/K

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ISO 11359-1/-2

Melting point

249 °C

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ISO 11357-1/-3 | 18°F/min

Relative temperature index, electrical

75 °C

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UL 746B | 120mil

Relative temperature index, mechanical impact

75 °C

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UL 746B | 120mil

Relative temperature index, mechanical strength

75 °C

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UL 746B | 120mil

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: 3 mm, UL recognition: yes -, FMVSS Class: B -, Burning rate, Thickness 1 mm: <80 mm/min

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

3 g/10min

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ISO 1133 | 280°C/2.16kg

Shrinkage

23.0 °C

0.2 %

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ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

0.9 %

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ISO 294-4, 2577

Technological properties

Property
Fillers

40% Glass Fiber

Processing methods

Drying Recommended: yes, Drying Temperature: 120°C, Drying Time, Dehumidified Dryer: 4-6h, Processing Moisture Content: ≤0.02%, Melt Temperature Optimum: 285°C, Min. melt temperature: 280°C, Max. melt temperature: 300°C, Max. screw tangential speed: 0.2m/s, Mold Temperature Optimum: 120°C, Min. mold temperature: 110°C, Max. mold temperature: 130°C, Hold pressure range: ≥80MPa, Hold pressure time: 4s/mm, Back pressure: As low as possible, Ejection temperature: 170°C