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Welcome to Crystex Composites, LLC.

Crystex Composites is the manufacturer and distributor of Mykroy/Mycalex® glass bonded mica ceramic materials and Mycalex Insualtors®


Mykroy/Myalex® 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® is available in machineable grades suitable for processing with standard carbide tools and water (or a water-based lubricant) and in moldable grades that do not require firing or sintering after molding. As a result, the material can accommodate metal inserts during molding similar to thermoplastics. Mykroy/Mycalex® does not burn or outgas. The material is dimensionally stable at temperatures ranging from -240°C to 800°C.

Crystex Composites products and services include:

  • Machinable grades of glass bonded mica in flat and round stock
  • Custom molded parts
  • Custom fabricated parts
  • Mycalex Insulators® (off the shelf standoff insulating products)
  • Synthetic Mica
  • Mold design and tool making

For more information regarding product offers please contact Crystex Composites LLC. Please refer to Crystex Technical Datasheets for product specific information.