COGEBI

COGEBI has perfected technology that allows the agglomeration of mica fragments to create a homogenous material in continuous production. The COGEBI process subjects the mineral to the action of a highly pressurized water jet, producing flat particles several microns thick, whose physical and chemical properties have been carefully preserved.

The resulting water slurry is fed to a special type of paper machine, which forms a continuous sheet of mica paper. At this stage, there is no need for a binding agent to hold the particles together, because their existing natural intermolecular attraction is usually sufficient. This 100% mica paper is called Cogemica, and is based on either Muscovite or Phlogopite.

COGEBI Mica Properties

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.