PRODUCTS:

Wollastonite

acicular wollastonite

Wollastonite belongs to a kind of chain like silicate and a fibrous and needle like shape. As the crystal structure of its special crystal determines its properties.
Type: acicular wollastonite, wollastonite powder
Chemical formula:CaSiO3
Colour: white
Density: 2.78-2.91 g/cm3
Melting point: 1544℃
Whiteness: 75-90%
Hardness:4.5-5.0
Features:
wollastonite has good insulation, high whiteness, good dielectric properties and high heat-resistant and weatherproof properties.
Application:
Wollastonite is widely used in ceramics, chemical industry, metallurgy, paper making, plastics, coatings and other fields.
Wollastonite in Ceramics Application
Wollastonite can reduce the sintering temperature and shorten the firing time,achieve low-teperature fast firing,save a lot of fuel. Increase glaze luster,save cost.Improve the quality.
Wollastonite in Paints and coatings Application
Wollastonite gives the coating high cohesion,Improve mechanical strength,and resistance to cracking and weathering,.Improve the properties of coating film,such as scratch resistance,scattering,covering ability,UV resistance.
Wollastonite in Construction Application
With it's non-toxic,tasteless,non-radioactive. wollastonite is used to replace the similar building materials which are harmful to human health. It can be used in for calcium board,fireproof board ,white cement,construction putty
Wollastonite in Friction materials Application
Wollastonite can improve the stability of friction materials,reduce cracking,save cost and increase the value of the products.it can be applied to brakes pads, linings, clutch,valve plugs,pulleys and so on.
Specification:

Item	ATWL-1	ATWL-2	ATWL-3
SiO2	48-53	47-52	47-54
CaO	43-45	38-42	35-40
Al2O3	0.15-0.30	0.15-0.30	0.15-0.30
Fe2O3	0.2-0.3	0.3-0.5	0.5-0.6
PH	9
Whiteness	75-92
Melting Point (℃)	1450
Hardness (Mohs)	4.5-5.0
Partical size (mesh)	80-6000