•  Brief Introduction of Our Products Wollastonite£º The formula of Wollastonite is CaSiO 3 . The ideal chemical specifications are as followed: SiO 2 51.75% CaO 48.25% Heated-Swelling Coefficient:6.5¡Á10-6¡æ-1 Moh's Hardness 4.5-5.0 Density 2.8 melting Point 1540¡æ Refraction Index 1.62 The actual chemical specifications are as followed: SiO 2 ¡¡¡¡41-51% CaO ¡¡¡¡ 38-47.5% Fe 2 O 3 ¡¡ 0.35%max MgO ¡¡¡¡ 1.5%max Al 2 O 3 ¡¡ 1%max S,P ¡¡¡¡ 0.04%maz

¶þ¡¢ Charactereatic of wollastontite£º Glaze grade A  Grade SiO 2 ¡Ý49% CaO¡Ý43% Fe 2 O 3 ¡Ü0.3% LOI¡Ü2% whiteness¡Ý90 size200£­400mesh B  Grade SiO 2 ¡Ý49% CaO¡Ý43% Fe 2 O 3 ¡Ü0.3% LOI¡Ü3% whiteness¡Ý90 size200£­400mesh Ceramic-Body Grade SiO 2 ¡Ý41% CaO¡Ý39% Fe 2 O 3 ¡Ü0.5% LOI¡Ü8%   size60£­200mesh granule0£­10mm Filler Grade SiO 2 ¡Ý49% CaO¡Ý43% Fe 2 O 3 ¡Ü0.5% LOI¡Ü4.0% size200£­2000mesh Metallurgy Grade A  Grade SiO 2 ¡Ý49% CaO¡Ý43% Fe 2 O 3 ¡Ü1.0% LOI¡Ü1.5% size100£­400mesh B  Grade SiO 2 ¡Ý49% CaO¡Ý43% Fe 2 O 3 ¡Ü1.0% LOI¡Ü2.0%   size100£­400mesh Paint Grade A  Grade SiO 2 ¡Ý49% CaO¡Ý44% Fe 2 O 3 ¡Ü0.5% whiteness¡Ý90 size325£­2000mesh B  Grade SiO 2 ¡Ý30% CaO¡Ý40% Fe 2 O 3 ¡Ü0.4% whiteness¡Ý91 size325£­2000mesh Welding Grade   SiO 2 ¡Ý45% CaO¡Ý40% Fe 2 O 3 ¡Ü0.8% S¡Ü0.04% P¡Ü0.04% size60£­325mesh

Èý¡¢ Exceed the detailed products¡¢ series We use the micronized jet mills imported from abroad to produce all kinds of minerals powder from 600 mesh to 2500 mesh.. The retention of these products is 8%min. OurProducts have earned good reputation both inside and outside. The micronized products are mainly used in high-class panints industry, paper-making industry, engineering plastics industry, glaze, etc. to replace talc, ZnO to reduce the cost.

ËÄ¡¢ Series Products of Acicular Wollastonite Powder ¡¡¡¡Dadingshan brand series products of acicular wollastonite powder with high aspect ratio are processed with advanced technics and equipments, Since the products have high aspect ratio, good reinforcement and sealing property, they are used to replace asbestos, fiber talc, glass fiber. These series products also are used in high polymer engineering plastics, special plastics and chemical industry, friction materials, building materials and so on .     G¡ªSeries H-Series hG-Series G-60F G-100F G-200F G-300F H-600F H-800F H-1250F H-1800F HG-10 HG-20 chemical Analysis SiO 2 ¨R49 ¨R49 ¨R50 CaO ¨R44 ¨R44 ¨R45 Fe 2 O 3 ¨Q0.3 ¨Q0.3 ¨Q0.3 LOI ¨Q3 ¨Q3 ¨Q2 Sendimctation ¡Ö60 ¡Ö80 ¡Ö90 ¡Ö90 ¨R85 ¨R100 ¨R120 ¨R140 ¨R84.5 ¨R87 Bulk Density ¨Q0.5 ¨Q0.3 ¨Q0.25