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Home > Products > Natrual Stone > Wollastonite, Used for Siliate Wool, Filling in Paint, Paper Making and Rubber Industries

Wollastonite, Used for Siliate Wool, Filling in Paint, Paper Making and Rubber Industries

Basic Info

Model No.:  SiO2 45-55%

Product Description

Model NO.: SiO2 45-55% Purity: 50%~80% Appearance: Powder CAS No.: 1344-95-2, 10101-39-0 Specification: SiO2 45-55% HS Code: 2530909100 Certification: CIQ, SGS, ISO Type: Wollastonite, Grade Standard: Industrial Grade Trademark: LY Origin: Shandong Our advantage:
1. Factory price,
2. Good Quality,
3. Free sample,
4. ISO Cerficate,
5. A long stable supplier,
6. Good support to you
Wollastonite is a kind of natural minerals, its formula is CaSiO3 (Calcium-metasilicate). Based on its properties of high whiteness, natural brilliant acicular particle shape, besides of there properties, our wollastonite are processed with advanced technics and equipments, with high aspect ratio, good reinforcement and sealing property, more and more, it replaces asbestos, fiber talc, glass fiber, used in high polymer engineering plastics, special plastics, friction materials, etc sides. Also the wollastonite are widely used for Ceramic-body, Metallurgy, Painting, Welding and Glaze etc application.

-- As calcic metasilcate mineral, is a new kind of industrial raw mineral materials. 
-- White powder nd relative density is 2.8,melting point is 1554°C 
-- Good insulation performance, endure acid, resist abrade, bear high temperature.
 Chemical analysis
Whiteness SiO2   CaO  Al2O3  Fe2O3  TiO2   MgO L.O.I  
>80  49-53  43-45  0.26max  0.35max  0.02max  1.3max  1.5-3
The physical properties of wollastonite
Iterm Result
Granularity(mesh) 80-2500
Ratio of length to diameter(L/D) 8-25
absorption oil value (g/100g) 20-26
Whiteness(%) >80
Refraction(%) 1.63
Density(g/cm3) 2.95
Expantion coefficient(mm//mmºC) 6.5×10-6
Melting point( ºC ) 1450
Hardness(Moh's) 4.5-5
Sedimentation value(ml/200m)  40-90
 --At present, it's mainly applied to ceramic industry, and secondly used as metallurgy protecting slag and paint.
 --Further, it can be used as electrode coating, mountain cork substitute, abradant binding agent, compound of glass and stuffing of rubber, plastic, insulating material and paper. 
--Be widely used in paint, plastics, rubber, electric welding, glass, electron industry, metallurgy and paper making, Friction material, Construction, Ceramics. 
--Some wollastonite can be used as finishing material of building or compound of white cement


Contact us if you need more details on Wollastonite. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Grammite、Tabular Spar. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Natrual Stone

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