• Mica (vermiculite) is a natural product of aluminium silicate complexes; it is characterized by its layered morphology and an almost perfect basic division. The structure is highly flexible and of great elasticity and hardness. It has excellent thermal stability and chemical resistance.
  • The BelpaMica mica sheet is a material for high temperatures, which consists of compressed exfoliated mica on a sheet of perforated 316 stainless steel with no type of binding material.
  • Mica is used for high temperature and low pressure gaskets; it’s especially designed for uses where the temperature, together with the fluid and the environment, may cause corrosion in materials such as graphite.
  • It is recommended for high temperature turbines, turbochargers, high temperature heat exchangers, dry warm-air installations, and generally in high temperature applications.
  • In the automotive industry, mica is used for exhaust pipes and engines.
  • In the chemical, petrochemical, and refinery industries, mica is used for processes which operate at high temperatures (mainly pyrolysis and catalysis).

Technical Data for BelpaMica Mica

Property Value Unit
Color Gold
Plate format 1000 x 1200 mm
Thicknesses 1, 1.5, 2, 3 mm
Density (+/-10%) 2.0 gr/cm3
Compressibility ASTM F36 A 25 / 30 %
Elastic recovery ASTM F36A >25 %

Transverse tensile strength


80 Mpa
Gas permeability DIN 3535/6 <1.7 cm3/min

Relaxation 50 Mpa / 300ºC

DIN 52913

30 Mpa