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Description:Specifications: Wollastonite extensive use in oil paint, Plastics, rubber, electric welding, glass, electron industry, metallurgy and paper making . Its insulation performance is very good, endure acid, resist abrade, bear high temperature, have good fibre performance. Refined mineral wollastonite Features: 1) High purity near the theoretic component 2) Good needle-shape, low ignition loss 3) Low content of harmful constituent such as Fe2O3:, S and P 4) Main chemical components (%): a) SiO2:>49 b) CaO:>45 c) Fe2O3: <0.2 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <1.5 Wollastonite needle powder Features: 1) 200 to 1,250 meshes 2) High length-diameter ratio, high whiteness 3) Widely used in plastic, rubber, paint and coating, ceramic, frictional materials, insulator, building materials, composite materials and other fields Physical-chemical index (%): 1) NFW-XA: a) SiO2:>49 b) CaO:>46 c) Fe2O3: <0.25 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <1.5 2) NFW-XB: a) SiO2:>50 b) CaO:>43 c) Fe2O3: <0.2 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <3 3) NFW-XC: a) SiO2:>51 b) CaO:>40 c) Fe2O3: <0.2 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <5 Metallurgical grade wollastonite Features: 1) 80 to 325 meshes 2) Used in continuous casting flux, agglomerated flux, welding electrodes Physical-chemical index (%): 1) NFW-YA: a) SiO2:>49 b) CaO:>45 c) Fe2O3: <0.25 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <1.6 2) NFW-YB: a) SiO2:>49 b) CaO:>43 c) Fe2O3: <0.2 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <2.5 3) NFW-YC: a) SiO2:>51 b) CaO:>40 c) Fe2O3: <0.2 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <5 Ceramic grade wollastonite Features: 1) 200 to 325 meshes 2) When sufficient wollastonite is added to ceramic material, the baking temperature can be decreased, and the baking duration greatly shortens to one rapid low temperature bake, thus saving fuel and reducing production costs 3) At the same time the mechanical properties are improved, cracks and streaks on the products are eliminated and quality raised Physical-chemical index (%): 1) NFW-TA: a) SiO2:>49 b) CaO:>45 c) Fe2O3: <0.25 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <1.6 2) NFW-TB: a) SiO2:>50 b) CaO:>43 c) Fe2O3: <0.25 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <2.5 3) NFW-TC: a) SiO2:>51 b) CaO:>40 c) Fe2O3: <0.25 d) Al2O3: <0.8 e) MgO: <0.8 f) S: <0.001 g) P: <0.001 h) Loss: <5 Packing: 25kg/bag, 50kg/bag