For some high frequency citcuitry application the Dielectric Constand and other electrical properties are important and the list below gives a general level of guidelines. More specific information is available from the manufacturer of the material.

Electrical resistivity: >10¹⁸ Ω·m

Dielectric constant: 3.75 at 20 °C 1 MHz

Dielectic loss factor: less than 0.0004 at 20 °C 1 MHz

Index of refraction: at 587.6 nm (n_d): 1.4585, change of refraction index with temperature change (0 to 700 °C): 1.28×10⁻⁵/°C (between 20 and 30 °C)

Dielectric strenght: 250–400 kV/cm at 20 °C