Wollastonite with Different Grade and Different Size

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Wollastonite with Different Grade and Different Size


wollastonite (calcium metasilicate)is used in ceramics, paint, friction products (brakes and clutches), joint compounds, refractories, rubber, wallboard, and metallurgical applications.

Cas no: 13983-17-0

1*20 FCL can load about 25-27 tons.


DescriptionWhite powder

ItemsSiO2 %CaO %MgO %Fe2O3 % S %P %Al2O3Loss %

Grade A≥49≥46≤0.8 ≤0.3≤0.01≤0.01  ≤ 0.8≤1.5 

Grade B≥50 ≥43≤0.8  ≤0.3≤ 0.01≤0.01   ≤ 0.8≤3

Grade C≥51≥40≤0.8≤0.35≤ 0.01≤0.01≤ 0.8≤5

Size80-400 mesh or as request


ItemsSiO2 %CaO %MgO %Fe2O3 % S % P %Loss %White Grade

Grade A45-5638-43≤0.8≤ 0.2≤0.001≤0.0014.5-5.5  ≥80

Grade B49-5144-46≤0.8≤ 0.2≤0.001≤0.0011-2.5 ≥85

Size: From 80 mesh to 400mesh or adjusted according to customer’s request


Wollastonite with Different Grade and Different Size

Wollastonite with Different Grade and Different Size

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Q:Does plastic modification add wollastonite to improve tearing properties?
However, the tearing properties of materials are generally applicable to films. If this is the case, I estimate that the tear properties of the film will not be improved by adding mineral fillers
Q:The difference between wollastonite and calcite
Wollastonite is a kind of silicate, because the heat resistance of wollastonite with acicular, fibrous crystal morphology and high whiteness, good dielectric properties and high so it is widely used in ceramics, chemical industry, metallurgy, construction, machinery, electronics, papermaking, automotive and other industries.
Q:What is the difference between wollastonite powder and calcium carbonate?
Wollastonite is calcium silicate and calcium carbonate is carbonate.
Q:Does exterior wall coating talcum powder replace wollastonite powder?
High surface finish. And the price is cheaper than wollastonite. Able to reduce costs. It is recommended that you use poly brand coating grade talc powder.
Q:What are the surface modification methods and processes of wollastonite?
Wollastonite commonly used surface modification agent: at present, the wollastonite commonly used surface modification is the main agent of silane coupling agent, titanate and aluminate coupling agent, surface active agent and methyl methacrylate. 1 silane coupling modified silane coupling modification is one of the commonly used surface modification methods of wollastonite powder. The process of dry modification is generally used, and the amount of coupling agent is related to the required coverage and the specific surface area of the powder. Amino silane treatment of wollastonite, wollastonite content is 0.5% of the weight; methacryloyl oxygen containing silane dosage of wollastonite weight 0.75%, these two kinds of modified products were filled with nylon 6 and polyester instead of 30% glass fiber can significantly improve the mechanical properties of the products.
Q:Chemical TSP and wollastonite filled nylon do contrast to the good toughness
Cleaning and coated with anti - reflective film lenses, such as cameras, slide projectors, microscopes lens, can be used about 20% of alcohol preparation cleaning agent for cleaning. When cleaning application soft brush or cotton with a small amount of cleaning agent, from the lens center outward circular motion. Do not put this kind of lens soaked in cleaning agent cleaning; cleaning the lens shall not force wipe, otherwise it will scratch the antireflection film, lens damage.
Q:Main characteristics of Wollastonite
Wollastonite is a chain metasilicate, and is a kind of fiber like needle. Because of its special crystal morphology, crystalline structure determines its properties. Wollastonite has good insulation, high whiteness, good dielectric properties and high heat resistance and weather resistance. Wollastonite is widely used in the fields of ceramics, chemical industry, metallurgy, paper making, plastics, coating and so on.
Q:Addition of needle like wollastonite in engineering plastics
Wollastonite is added to engineering plastics, which is called calcium plastic in the industry, because slaked lime is calcium hydroxide and lime is calcium carbonate. In order to increase the strength of the plastics, the calcined wollastonite is added.
Q:World resources of Wollastonite
The United States (NYCO, the earliest wollastonite manufacturer in the United States, New York and India have the resources, in the low-end market has extended to the foot of hunting, wollastonite application technology industry), India (Wolkem India Ltd.), Finland (Finland Nordkalk is one of the top five wollastonite manufacturer in the world was bought in 2002 by Finland. The group, Mexico and South Africa (Namaqua) Wollastonite (Pty.) Ltd. with the mineral resources aspect ratio, but the iron is relatively high, Namibia, Spain),
Q:Can wollastonite be certified by REACH?
There are issues related to REACH consulting Huace Mario, or leave your contact information, Huace swico is a listed company in the REACH industry background, is the absolute leader.

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