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Re: Glass as a Dielectric

What exactly do you want to know? There are lots of different glass compositions. Common glass in general is an excellent insulator.
Dielectric constants:
Silica = 3.78 (10^2 to 10^10 Hz)
Pyrex = 5.02 @ 10^2 Hz; 4.84 @ 10^6 Hz
Most mixed composition glasses (such as soda lime silica) have higher dielectric constant than pure silica, some as high as 10.

Fibreglass is a mixture of air and glass, so take your pick between air (1) and ~8.

regards
zarquon

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