Mica are sheet silicates historically significant for their ability to be split into large, thin sheets that are uniquely useful for their electrical, thermal, and mechanical properties. They have high electrical and thermal insulating properties; they are resistant to chemical attack; they can be split into
transparent or optically flat films; and they can be cut or stamped to shape.
Uses of mica:
1- Joint cements: muscovite is used in drywall joint compounds, where it contributes to consistency and workability, smooth surface finish, and resistance to shrinkage and cracking.
2- Coatings Fine-ground, -325 mesh and micronized mica grades are used in paint as a pigment extender and for dry film reinforcement. The inert, platy mica improves suspensi
on stability, controls film checking, chalking, shrinkage, and blistering, improves resistance to weathering, chemicals, and water penetration, and improves adhesion to most surfaces. Coarser grinds are used in textured paints, and wet-ground mica is used in high quality exterior house paints. High aspect ratio grades are preferred for porous surface sealers
to seal pores, control penetration, and reduce sagging and film cracking.
3- Plastics Finely ground, -325 mesh and micronized micas are used in plastics to improve electrical, thermal, and insulating properties. Mica is considered the most effective mineral for reducing warpage and increasing stiffness and heat deflection temperature in plastics. In general, mica reinforces crystalline better than amorphous polymers. Best results are obtained with nonpolar polymers when mica is pretreated with a coupling agent to improve wetting. Mica is used in both thermoplastics and thermosets. Its largest single use is in
polyolefins, even though it requires stabilizers to prevent degradation of polypropylene.
4- Drilling fluids Coarse, hammermilled (+10 mesh) mica is used in waterbased oilwell drilling fluids to prevent fluid loss into porous rock formations.
Mica We produce all kinds of nonmetallic minerals, such as vermiculite, mica, quartz, feldspar, perlite and so on.What we produce is comply with internation standard.
Flakes, Powder, Quartz + Feldspar
Mica, Mica Flakes, Quartz, Quartz Lumps, Feldspar, Vermiculite
1. Mica is a naturally occurring mineral known for its excellent electrical insulation properties. 2. Mica is transparent and heat-resistant, making it an ideal material for windows in high-temperature environments. 3. This mineral is often used in cosmetics for its shimmering and light-reflecting qualities. 4. Mica\'s flexibility and resistance to chemicals and moisture make it a valuable material in various industrial applications. 5. Mica is available in sheet and flake forms, with various grades and thicknesses suitable for different uses.
1. Chemical Compositions: SiO2 Al2O3 Fe2O3 Ca O Mg O K2O Na2O 44.3% 31.2% 5.74% 0.75% 0.62% 10.58% 1.17% 2. Physical Properties: Sand Content Iron content Oil Absorption L.O.I. Density Moisture Whiteness Melting Point < 1% 100-400 ppm 28-50% 4.97% 0.28-0.33ml/g
Chemical components: Chemical composition SiO2 Al2O3 K2O Fe2O3 CaO Na2O MgO H2O Contents(%) 47.32 33.25 11.82 1.81 0.03 0.96 0.91 2.7. Physical properties: Density (g/m3) Refractive index Whiteness (%) Moisture (%) Radius-thickness ratio Heat Resistance (¡ã C) L.O.I. (%) 2.80 1.60 70-80 60 1300 2.82-2.9.
Natural and real as all colors are compliant with the original colors of granules within the natural granite stone; resistant of water and weather; integrative with acrylic resin; mixing with kinds of wet stone paint; non-fading; non-influencing of paints' original property; making ordinary natural stone paints into high-grade granite paint. Natural mica flake is very good in retaining color, water proof, simulation quality, cold resistance and elasticity. It is not sticky when it's hot and not crisp when it's cold. It takes on many bright colors. It is not only an excellent material for manufacturing stone-like coatings and granite coatings, but also a new decorative material for inner wall paints.
It has many kinds of specifications. It can be used in coatings, paints, plastics and rubbers and so on.
1. Chemical Compositions: SiO2 Al2O3 Fe2O3 Ca O Mg O K2O Na2O 44.3% 31.2% 5.74% 0.75% 0.62% 10.58% 1.17% 2. Physical Properties: Sand Content Iron content Oil Absorption L.O.I. Density Moisture Whiteness Melting Point < 1% 100-400 ppm 28-50% 4.97% 0.28-0.33ml/g
