Polystyrene - PS UV Stabilised

Polymer Type

Thermoplastic

Advantages

Good weather resistance, much longer service life 3-5 times as long compared with unmodified polystyrene.

Disadvantages

UV stabilizers give polystyrene a faint yellow tint. Tensile strength and elongation at break slightly reduced compared with unmodified polystyrene.

Typical Properties

Property

Value

Density (g/cm3)

1.10

Surface Hardness

RM80

Tensile Strength (MPa)

32

Flexural Modulus (GPa)

3

Notched Izod (kJ/m)

0.02

Linear Expansion  (/°C x 10-5)

7

Elongation at Break (%)

3

Strain at Yield (%)

1.4

Max. Operating Temp. (°C)

50

Water Absorption (%)

0.05

Oxygen Index (%)

18

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

15

Dielectric Strength (MV/m)

18

Dissipation Factor 1kHz

0.0003

Dielectric Constant  1kHz

2.6

HDT @ 0.45 MPa (°C)

90

HDT @ 1.80 MPa (°C)

80

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

200 - 250

Mould Shrinkage (%)

0.5

Mould Temp. Range (°C)

20 -  50

Applications

Sports and leisure items. Caravan and motor caravan accessories. Outdoor signs and displays. Spoilers for cars and lorries. Light fittings.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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