Physical data*

Property Standard Unit Typical values XT SP

Density

ASTM D 792/EN ISO 1183-1

g/cm3

1.065

Refractive index

ASTM D 542/EN ISO 489

-

1.482

Thermal conductivity

ASTM C 177/EN 12939

W/mK

0.20

Thermal expansion coefficient

ASTM D 696

1/Kx10-4

2.20

Specific heat

ASTM C 351

J/gK

1.85

Surface resistivity

ASTM D 412/IEC 60093

Ωx1011

2.0

Tensile strength

ASTM D 412/EN ISO 527-3

MPa

>23

Elongation at failure

ASTM D 412/EN ISO 527-3

%

>250

* Data are a question of typical averages