Mykroy/Mycalex© is the trade name for the glass bonded mica ceramic material produced by Crystex Composites LLC, Since 1919, Mykroy/Mycalex© remains the most versatile and efficient electrical and thermally insulating material produced to meet the exacting demands of technical markets. Mykroy/Mycalex© is the only fully inorganic material to bridge the performance gap between high-performance plastics and structural ceramics.

Mykroy/Mycalex© glass bonded mica ceramic is a simultaneous union under high pressure and temperature of the finely powered electrical quality glass and precisely defined (natural or synthetic) mica. The resulting stone-like, dense ceramic material inherits all of the insulating advantages of both components.