Mica is one of a group of lamellar, silicate minerals. Imerys mica powders are extracted from our deposits along with kaolin and feldspar. They are distinguished from other silicate minerals mainly by their high aspect ratio and elasticity. Using a variety of selection and processing methods Mica is separated from the other minerals, creating materials with a range of particle sizes.
When formulated into paint and mortar, mica can give a very smooth finish and easy dispersion. Coarser grades are used to give a decorative effect, Mica is often referred to as Glimmer, a description of the visual effect that it imparts.
The particle shape and chemical composition of Mica allows them to be used to increase resistance to chemicals, wear and tear and ultraviolet light in coatings and varnishes.
Mica powder is used by the plastics industry for the production of complex injection moulded parts taking advantage of it’s strengthening and elastic properties. Mica is also widely used to improve