Polyester - DMC; Low Profile

Aug 21 2001

Advantages

Very low mould shrinkage, improved surface appearance and lowest density compared with other polyester DMC’s.

Disadvantages

Lowest tensile strength, heat distortion temperature, maximum operating temperature, flexural modulus and dielectric strength compared with other polyester DMC’s.

Typical Properties

Property

Value

Density  (g/cm3)

1.7

Surface Hardness

RM90

Tensile Strength (MPa)

32

Flexural Modulus (GPa)

8.5

Notched Izod (kJ/m)

0.4

Linear Expansion (/°C x 10-5)

2.5

Elongation at Break (%)

1.5

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

120

Water Absorption (%)

0.25

Oxygen Index (%)

22

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

13

Dielectric Strength (MV/m)

10

Dissipation Factor1kHz

0.2

Dielectric Constant  1kHz

5

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

185

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

20 -  60

Mould Shrinkage (%)

0.01

Mould Temp. Range (°C)

120 - 160

Applications

Kitchen appliances such as steam iron bases, toaster endplates and casings for electric fires.

 

Source : Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

 

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