Polyester - Laminate; Woven Glass Roving

Advantages

For the same price has higher maximum operating temperature, tensile strength, flexural modulus, notched izod impact strength, heat distortion temperature and surface hardness than chopped glass filled polyester laminate.

Disadvantages

Restricted mouldability and flow and higher S.G. than chopped glass filled polyester laminate. Approximately three times more expensive than SMC.

Typical Properties

Property

Value

Density  (g/cm3)

1.7

Surface Hardness

RM125

Tensile Strength (MPa)

280

Flexural Modulus (GPa)

16

Notched Izod (kJ/m)

1.06+

Linear Expansion (/°C x 10-5)

2

Elongation at Break (%)

1.5

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

130

Water Absorption (%)

0.3

Oxygen Index (%)

20

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

14

Dielectric Strength (MV/m)

13

Dissipation Factor1kHz

0.02

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 (%)

NA

Mould Temp. Range (°C)

NA

Applications

High strength applications, automotive bumpers, marine applications, large containers and tooling.

 

Source : Abstracted from Plascams

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

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Submit