Liste
technical data
physical properties at 20°C | unit | VOS | HL | HT |
bulk density | g/cm3 | 1.18 | 1.18 | 1.18 |
water absorption (96 h) | mg/10 cm3 | 45 | 45 | 45 |
mechanical properties | ||||
tensile strength | N/mm2 | 75 | 70 | 70 |
elongation at break | % | 4.5 | 4.0 | 4.0 |
bending strength | N/mm2 | 135 | 125 | 125 |
modulus of elasticity | N/mm2 | 3300 | 3200 | 3000 |
notched impact strength | kpcm/cm3 | 2 | 2 | 3 |
cross-linking | no | poor | strong | |
surface hardness | pencil | 1H | 3H | 3H |
thermal properties | ||||
vicat softening point | °C | 100-105 | 114-118 | 120-122 |
temp. of dimensional stability | °C | 100 | 100 | 105 |
continuous operating temperature | °C | 70 | 75 | 75 |
linear coefficient of thermal expansion (0-50°C) | K-1 | 70 x 10-6 | 70 x 10-6 | 70 x 10-6 |
thermal conductivity | kcal/mh °C | 0.19 | 0.19 | 0.19 |
deformation temp. | °C | 130-150 | 160-180 | 160-180 |
fire behaviour | UL 94 | HB | HB | HB |
optical properties | ||||
refractive index | nD20 | 1.492 | 1.492 | 1.492 |
light transmission (380-780 nm) | % | 92 | 92 | 92 |
electrical properties | ||||
surface resistance | Ω | > 1014 | > 1014 | > 1014 |
volume resistivity | Ω | 1014 | 1014 | 1014 |
dielectric strength | kV/mm | 30 | 30 | 30 |
dielectric loss factor (50 Hz ~) | 0.06 | 0.06 | 0.06 | |
dielectric constant (50 Hz ~) | 3.6 | 3.6 | 3.6 | |
leakage current resistance | Kc | > 600 | > 600 | > 600 |