Polyester - SMC; Low Profile

Aug 21 2001

Advantages

Lowest mould shrinkage and excellent surface smoothness compared with other polyester SMC’s.

Disadvantages

Limited pigmentability. Lowest notched izod impact strength, tensile strength and maximum operating temperature compared with other polyester SMC’s.

Typical Properties

Property

Value

Density  (g/cm3)

1.8

Surface Hardness

RM80

Tensile Strength (MPa)

65

Flexural Modulus (GPa)

10

Notched Izod (kJ/m)

0.6

Linear Expansion (/°C x 10-5)

2.5

Elongation at Break (%)

3

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

120

Water Absorption (%)

0.2

Oxygen Index (%)

22

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

13

Dielectric Strength (MV/m)

12

Dissipation Factor1kHz

0.01

Dielectric Constant  1kHz

5

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

190

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

0.01

Mould Temp. Range (°C)

135 - 145

Applications

Automotive components, baths and doors.

 

Source : Abstracted from Plascams

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

 

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Related Books

  • The Mould Design Guide
  • Computational Mesomechanics of Composites: Numerical Analysis of the Effect of Microstructures of Composites of Strength and Damage Resistance

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