Polyester - Casting; Flexible

Advantages

Higher elongation at break and notched impact strength and lower density than rigid casting polyester.

Disadvantages

Significantly lower tensile strength and flexural modulus, lower HDT and dielectric strength and higher linear expansion than rigid casting polyester.

Typical Properties

Property

Value

Density   (g/cm3)

1.15

Surface Hardness

SD75

Tensile Strength (MPa)

6.9

Flexural Modulus (GPa)

0.8

Notched Izod (kJ/m)

0.3

Linear Expansion (/°C x 10-5)

12

Elongation at Break (%)

40

Strain at Yield (%)

N/Y

Max. Operating Temp. (°C)

120

Water Absorption (%)

0.5

Oxygen Index (%)

20

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

12

Dielectric Strength (MV/m)

16

Dissipation Factor1kHz

0.03

Dielectric Constant  1kHz

5.5

HDT @ 0.45 MPa (°C)

200

HDT @ 1.80 MPa (°C)

100

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

3

Mould Temp. Range (°C)

NA

Applications

Chemically resistant linings for pipes and vessels.

 

Source : Abstracted from Plascams

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

 

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