VALOX™ FR Resins 357

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Description

VALOX 357 is an unreinforced, impact modified flame retardant Polybutylene Terephthalate/Polycarbonate (PBT/PC) injection moldable grade. It has excellent chemical resistance and a UL94V0@0.63mm and 5VA@3.0mm flame rating. This is a good candidate for applications in the electrical industry including bobbins, switches, and enclosures.

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

1.34 g/cm³

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ASTM D 792

Water absorption

23.0 °C

0.15 %

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ISO 62 | 23°C, 50% RH

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

2.02 GPa

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ASTM D 638 | 5 mm/min

Elongation

23.0 °C

110 %

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ASTM D 638 | Type I, 50 mm/min

Elongation at yield

23.0 °C

5 %

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ASTM D 638 | Type I, 50 mm/min

Flexural modulus

23.0 °C

2.06 GPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Flexural strength

23.0 °C

83 MPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Flexural yield strength

23.0 °C

83 MPa

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ASTM D 790 | 1.3 mm/min, 50 mm span

Hardness, Rockwell R

23.0 °C

117 [-]

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ASTM D 785

Impact strength, Charpy notched

23.0 °C

45 kJ/m²

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ISO 179/1eA

Impact strength, Izod notched

-30.0 °C

10 kJ/m²

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ISO 180/1A

23.0 °C

45 kJ/m²

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ISO 180/1A

Impact strength, Izod notched, ASTM

-30.0 °C

153 J/m

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ASTM D 256

23.0 °C

534 J/m

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ASTM D 256

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Tensile strength

23.0 °C

45 MPa

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ASTM D 638 | Type I, 50 mm/min

Yield strength

23.0 °C

48 MPa

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ASTM D 638 | Type I, 50 mm/min

Impact strength, Charpy unnotched

No break @ 23°C | ISO 179/1eU

Impact strength, Izod unnotched

No break @ 23,-30°C | ISO 180/1U

Impact strength, Izod unnotched, ASTM

No break @ 23°C | ASTM D 4812

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.24E-4 1/K

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ASTM E 831 | 60°C to 138°C

Coefficient of thermal expansion, transverse

23.0 °C

8.4E-5 1/K

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ASTM E 831 | -40°C to 40°C

Heat deflection temperature, 0.45 MPa

125 °C

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ISO 75/Bf | 0.45 MPa

Relative temperature index, electrical

120 °C

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UL 746B

Relative temperature index, mechanical impact

120 °C

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UL 746B

Relative temperature index, mechanical strength

140 °C

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UL 746B

Vicat softening temperature

134 °C

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ASTM D 1525 | Rate B/50

Flammability

UL Recognized, 94-5VA Flame Class Rating | 3mm | UL 94

Electrical

PropertyTemperatureValueComment

Comparative tracking index

23.0 °C

2 V

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UL 746A

Dielectric constant

23.0 °C

3.2 [-]

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ASTM D 150 | at 1 MHz

Dielectric strength

23.0 °C

18.5 kV/mm

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ASTM D 149 | in oil, 3.2 mm

Dissipation factor

23.0 °C

0.03 [-]

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ASTM D 150 | at 1 MHz

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

9.6 g/10min

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ASTM D 1238 | 250°C/5.0 kgf

Melt volume-flow rate

8 cm³/10min

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ISO 1133 | 250°C/5.0 kg

Shrinkage

23.0 °C

1 - 1.4 %

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SABIC method | 2.3-4.6 mm

Shrinkage, transverse

23.0 °C

1.2 - 1.6 %

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SABIC method | 2.3-4.6 mm

Technological properties

Property
Application areas

Air Conditioning,Amusement Machine,Audio,Building Accessory,Circuit Protection,Cooking Range,Data Transfer,Defense Vehicles,Dishwasher,Displays,Document Handling,Electronic Components,Enclosure/Housing/Cover,Enclosures,Energy Management,EV Infrastructure,Fluid Delivery,Food Processor,Freezer,Gas/Electric Oven,Golf Cart,Heavy Vehicles,Industrial Material Handling,Lab Ware and Clinical Diagnostics,Laundry Dryer,LED Lighting,Medical Device,Medical Facility Infrastructure,Non-LED Lighting,Oil/Gas,Personal Computing,Photovoltaic Components,Power Manangement,Pump,Recreational Vehicle,Refrigerator,Respiratory,Semiconductor,Small Appliance,Surgical Devices,Swimming Pool/Spa,Window,Wireless Communications,Wiring Devices,Wire & cable

Processing methods

Drying Temperature: 120°C, Drying Time: 3-4hrs, Drying Time (Cumulative): 12hrs, Maximum Moisture Content: 0.02%, Melt Temperature: 250-265°C, Nozzle Temperature: 245-260°C, Front - Zone 3 Temperature: 250-265°C, Middle - Zone 2 Temperature: 245-260°C, Rear - Zone 1 Temperature: 240-255°C, Mold Temperature: 50-75°C, Back Pressure: 0.3-0.7MPa, Screw Speed: 50-100rpm, Shot to Cylinder Size: 40-80%, Vent Depth: 0.025-0.038mm