Mica

Mica is a mineral exfoliates in thin crystal, transparent, flexible and elastic sheets. Its resistance to high temperatures and its dielectric competence make it a good insulator. Muscovite mica, most commonly used in industrial applications up to 900 ° C resistant, so it is widely used in the level gauges or peepholes of boilers and furnaces. As borosilicate glasses, they are presented in standard sizes and can also be manufactured on demand.