Mica produced by Quinto is intended as a competitive replacement for micronized mica obtained by specialized grinding processes requiring extensive energy consumption. The mica contained in the Quinto deposit is actually a naturally ground muscovite. The main application for the Quinto mica is intended as the filler in plastics, additive to paints and wallpaper as well as a sealer. Mica's application as filler in plastics largely stems from its electrical and thermal resistance and its insulating qualities. As an additive to paints, mica acts as a reinforcing pigment reducing penetration into porous surfaces, improving weatherability and brushability.
Mica reduces running and sagging of paints and is an economical replacement for aluminum in paints.
Mica is also a sealer for porous surfaces, such as wallboard masonry and concrete structures. It's use in the joint compound mixture is widely recognized. In all applications mica contributes to making a nonabsorbent smooth surface that reduces shrinkage and eliminates cracks. In oil drilling operations, mica mixed with mud additives acts as a sealant because of its platy structure. Fine particle size mica is used as a flux coating for metal welding rods.