We can supply good quanitity of White Mica (Muscovite). White Mica has many uses.
The primary use of ground mica is in joint compound used to finish seams and blemishes in gypsum wallboard. The mica serves as a filler, improves the workability of the compound and reduces cracking in the finished product. In 2011 about 69% of the dry-ground mica consumed in the United States was used in joint compound.
Ground mica is used as a pigment extender in paint. It helps keep pigment in suspension; reduces chalking, shrinking and shearing of finished surface; reduces water penetration and weathering and brightens the tone of colored pigments. In some automotive paints tiny flakes of mica are used to produce a pearlescent luster.
Ground mica is an additive to drilling mud that helps to seal porous sections of the drill hole to reduce circulation loss. In 2011, about 17% of the dry-ground mica consumed in the United States was used in drilling muds.
The auto industry in the United States uses ground mica to improve the performance of plastic parts. In plastics, particles of ground mica serve as an agent to absorb sound and vibration. It can also improve mechanical properties by increasing stability, stiffness and strength.
Ground mica is used as an inert filler and mold release agent in the manufacture of molded rubber products such as tires and roofing. The platy grains if mica act as an antisticking agent.
Dry-ground mica is used as a surface coating on asphalt shingles and rolled roofing. The flat mica particles coat the surface and act as an antistick agent. The mica does not absorb the asphalt and stands up well to weathering.
Some of the highest quality ground mica is used in the cosmetics industry. The pearly luster of ground mica makes it an important ingredient in blushes, eyeliner, eye shadow, foundation, hair and body glitter, lipstick, lip gloss, mascara, and nail polish.
Sheet Mica Uses (White)
Most sheet mica is used to make electronic devices. In these uses the sheets are cut, punched, stamped and machined to precision dimensions. Uses include: diaphragms for oxygen breathing equipment, marker dials for navigation compasses, optical filters, pyrometers, retardation plates in helium-neon lasers, missile systems components, medical electronics, optical instrumentation, radar systems, radiation detector windows, and calibrated capacitors. The quality of sheet mica is influenced by the presence of inclusions. These can impair splitting, decrease transparency, and reduce dielectric strength. Tiny crystals of staurolite, zircon, garnet, tourmaline, magnetite, hematite and other minerals can form between the sheets and orient parallel to the mica's crystal structure. Inclusions decrease the mica's value and its ability to be used in most applications. Some of these involve making mica sheets from ground mica composites or the creation of synthetic micas in laboratories. Acrylic, fiberglass, nylatron, nylon, polyester, styrene, vinyl-PVC and vulcanized fibers are all finding use as sheet mica substitutes