Polyester - SMC; Fire Retardant

Advantages

Best oxygen index, good flexural modulus and heat distortion temperature compared with other polyester SMC’s.

Disadvantages

Lowest elongation at break compared to other polyester SMC’s.

Typical Properties

Property

Value

Density   (g/cm3)

1.85

Surface Hardness

RM100

Tensile Strength (MPa)

70

Flexural Modulus (GPa)

11

Notched Izod (kJ/m)

0.8

Linear Expansion (/°C x 10-5)

2

Elongation at Break (%)

2.5

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

130

Water Absorption (%)

0.2

Oxygen Index (%)

34

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

13

Dielectric Strength (MV/m)

11

Dissipation Factor1kHz

0.01

Dielectric Constant  1kHz

5

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

230

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

0.1

Mould Temp. Range (°C)

135 - 145

Applications

Aircraft parts eg. Storage bins, fuel tank vents, electrical panels and air handling systems.

 

Source : Abstracted from Plascams

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

 

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