Alkyd - Mineral Filled

Advantages

Lowest density compared with other modified grades of alkyd.

Disadvantages

Lowest tensile strength, flexural modulus, elongation at break, notched impact strength, mould shrinkage and HDT compared with other modified grades of alkyd.

Typical Properties

Property

Value

Density (g/cm3).

1.9

Surface Hardness

RE98

Tensile Strength (MPa)

45

Flexural Modulus (GPa)

7

Notched Izod (kJ/m)

0.02

Linear Expansion (/°C x 10-5)

4

Elongation at Break (%)

0.6

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

130

Water Absorption (%)

0.2

Oxygen Index (%)

29

Flammability UL94

V1

Volume Resistivity (log ohm.cm)

14

Dielectric Strength (MV/m)

13

Dissipation Factor1kHz

0.02

Dielectric Constant  1kHz

6.5

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

210

Material Drying  hrs @ °C

6 @ 30

Melting Temp. Range (°C)

40 -  80

Mould Shrinkage (%)

0.5

Mould Temp. Range (°C)

150 - 180

Applications

Lamp holders, sockets, relay bases, switches, coil formers and brush holders. Encapsulation of capacitors, resistors and diodes.

 

Source : Abstracted from Plascams

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

 

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