LEXAN™ Resin ML7682

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Description

LEXAN ML7682 resin is a flame retardant polycarbonate blend featuring high flow, good processability, good impact, good heat resistance, and UV stability. It is of non-chlorine and non-bromine flame retardant systems with UL-94 listing of V0 and 5V. LEXAN ML7682 resin offers limited opaque colors for aesthetics needs.

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

1.22 g/cm³

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ASTM D 792

Water absorption

23.0 °C

0.17 %

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ISO 62 | 23°C, 50% RH

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

2.5 GPa

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ASTM D 638 | 50 mm/min

Elongation

23.0 °C

93 %

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ASTM D 638 | Type I, 50 mm/min

Elongation at yield

23.0 °C

5.6 %

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ASTM D 638 | Type I, 50 mm/min

Flexural modulus

23.0 °C

2.43 GPa

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ISO 178 | 2 mm/min

Flexural yield strength

23.0 °C

90 MPa

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ISO 178 | 2 mm/min

Impact strength, Charpy notched

-30.0 °C

16 kJ/m²

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ISO 179/1eA

23.0 °C

62 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

-30.0 °C

132 kJ/m²

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ISO 179/1eU

23.0 °C

133 kJ/m²

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ISO 179/1eU

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Impact strength, Izod notched

-30.0 °C

15 kJ/m²

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ISO 180/1A

23.0 °C

63 kJ/m²

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ISO 180/1A

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Impact strength, Izod notched, ASTM

-30.0 °C

130 J/m

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ASTM D 256

23.0 °C

760 J/m

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ASTM D 256

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Impact strength, Izod unnotched

-30.0 °C

180 kJ/m²

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ISO 180/1U

23.0 °C

181 kJ/m²

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ISO 180/1U

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Impact strength, Izod unnotched, ASTM

-30.0 °C

2100 J/m

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ASTM D 4812

23.0 °C

2150 J/m

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ASTM D 4812

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Tensile strength

23.0 °C

59 MPa

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ASTM D 638 | Type I, 50 mm/min

Yield strength

23.0 °C

60 MPa

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ASTM D 638 | Type I, 50 mm/min

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

6.4E-5 1/K

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ASTM E 831 | -40°C to 40°C

Coefficient of thermal expansion, transverse

23.0 °C

6.8E-5 1/K

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ASTM E 831 | -40°C to 40°C

Heat deflection temperature, 1.80 MPa

119 °C

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ASTM D 648 | 1.82 MPa, 3.2mm, unannealed

Relative temperature index, electrical

125 °C

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UL 746B

Relative temperature index, mechanical impact

110 °C

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UL 746B

Relative temperature index, mechanical strength

120 °C

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UL 746B

Vicat softening temperature

138 °C

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ASTM D 1525 | Rate B/50

Flammability

UL Recognized, 94-5VB Flame Class Rating | 1.8mm | UL 94

Electrical

PropertyTemperatureValueComment

Volume resistivity

23.0 °C

1.00E+17 - 1.00E+18 Ω·cm

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ASTM D 257

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

22 g/10min

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ASTM D 1238 | 300°C/1.2 kg

Melt volume-flow rate

21 cm³/10min

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ISO 1133 | 300°C/1.2 kg

Shrinkage

23.0 °C

0.6 - 0.8 %

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SABIC method | 3.2 mm

Shrinkage, transverse

23.0 °C

0.6 - 0.8 %

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SABIC method

Technological properties

Property
Application areas

Data Transfer,Displays,Document Handling,Electronic Components,Enclosures,LED Lighting,Personal Computing,Security/Detection,Wireless Communications,Wiring Devices

Processing methods

Drying Temperature: 120°C, Drying Time: 3-4hrs, Drying Time (Cumulative): 48hrs, Maximum Moisture Content: 0.02%, Melt Temperature: 290-310°C, Nozzle Temperature: 280-305°C, Front - Zone 3 Temperature: 290-310°C, Middle - Zone 2 Temperature: 275-300°C, Rear - Zone 1 Temperature: 265-290°C, Mold Temperature: 70-95°C, Back Pressure: 0.3-0.7MPa, Screw Speed: 40-70rpm, Shot to Cylinder Size: 40-60%, Vent Depth: 0.025-0.076mm