mica powder

(MICA POWDER) Mica powder is mainly used for paint of inner and outer of wall in construction,coatings of fire-proof,rubber,plastics,welding rod,damping board,brake pad,sealed material,fire-fighting equipment,building material,drilling mud,pearluster pigment,insulation material and other fields. Super fine mica powder has unique capability of acid-resistance,alkali-resistance and chemical stability.And it also has capability of insulation,heat-resistance,non-combustibility,corrosion- resistance,flexibility,aging-prevention etc. Mica flake’s tendency parallel lines directionally with film’s surface.And it forms inertia and has protective layer of flexible corrosion resitance and ray radiation resistance.At the same time,super fine mica powder flake airproofs stoma of film.So It can improve uniformity of inner affinity of the coat.And it will strengthen the capability of crack,lubricity of surface,view of beautifulness,acid and alkali resistance of film,etc. 1.Chemical compositions: SiO2 Al2O3 Fe2O3 CaO MgO K2O Na2O Sandiness 44.3% 31.2% 5.74% 0.75% 0.62% 10.58% 1.17% <1.0% 2.Physical properties: Iron content Oil absorption L.O.I. Density Moisture Whiteness Melting point 100-400ppm 34-37% 4.94% 0.28-0.33cm3/g <1% 0-76% 1,280C degree 3.Particle standard of primary mica powder: Specs 20 mesh 40 mesh 60 mesh 100 mesh content mesh % mesh % mesh % mesh % PSD +20 <5 +40 <2 +60 <2 +100 <2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4.Particle standard of super fine mica powder: Specs 325 M (45μ) 600 M (30μ) 1,000 M (20μ) 1,250 M (12μ) 2,500 M (6μ) Content μm % μm % μm % μm % μm % PSD +45 <4 +30 <5 +20 7.2 +12 <10 +6 <10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --