MICA

Thermal
Mica can withstand temperature in excess of 1000°C/1830°F (Phlogopite), it is flame-retardant, non-flammable, does not give off fumes, and conducts very little heat, especially perpendicular to its strata.

Electrical
Natural mica has a dielectric strength greater than 25kV/mm (625V/mil), has good resistance to arcing and electrical erosion, and is permeable to microwaves.

Chemical
Mica is tolerant of water and most chemical agents, such as solvents, acids, bases and mineral oils.

Mechanical
Mica has good compressive strength. It behaves well in the presence of tensile and bending stresses. It has a high modulus of elasticity.