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Excellent Stability Calcium Metasilicate

Categories Wollastonite Powder
Brand Name: H&G
Model Number: HGWD-1250
Place of Origin: CHINA
MOQ: 2000KGS
Payment Terms: L/C, T/T
Supply Ability: 1000 Tons/Month
Delivery Time: 15 -20 working days
Packaging Details: 25 Kgs/Bag, 1000Kgs/Bag or Customization
product name: High Quality Wollastonite Powder(Calcium metasilicate)
Formula: CaSiO3
Usage: Engineering technical plastics Fluoro elastomer e.g. for oil sealing heat-resistant refractory ceramics metallurgy wood composites adhesives filler in paint, paper and other products friction products such as brake pads
Future: noticeable acicular and long fiber
Size: Mesh-325,Mesh-1000,Mesh-1250,Mesh-2000
Color: White
shape: Powder
Leading Time: 15 working days
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Excellent Stability Calcium Metasilicate


Product:High Quality Wollastonite Powder(Calcium metasilicate)

Decriptions
Wollastonite is an inorganic needle-like mineral, and wollastonite products have very noticeable acicular and long fiber structures .It is characterized by non-toxicity, chemical corrosion resistance, good thermal stability and dimensional stability, glass and pearl luster, low water absorption and oil absorption value, excellent mechanical and electrical properties,even reinforcing effect. Wollastonite products with long fibers and easy separation, low iron content and high whiteness.

Wollastonite is a calcium inosilicate mineral (CaSiO3) with a theoretical makeup of approximately 48% calcium oxide and 52% silicon dioxide. Wollastonite is usually white in color. It may contain small amounts of iron, magnesium, and manganese which can give it a grey, red, or brown tint.

Wollatonite is Widely used in plastics, rubber, asbestos substitutes, paint coatings and other fields, it can increase the hardness, flexural strength, impact resistance of products, improve the electrical properties of materials, improve thermal stability and dimensional stability, and is the most promising application field. It is also used in the ceramics and metallurgical industries. The SiO2 and CaO components in wollastonite provide low expansion rate and good thermal shock resistance.


Properties


ItemMesh-325Mesh-325Mesh-1000Mesh-1250Mesh-2000Mesh-2500Mesh-3000
Density g/cm32.8-2.92.8-2.92.8-2.92.8-2.92.8-2.92.8-2.92.8-2.9
Mohs Hardness4.54.54.54.54.54.54.5
Whiteness (R45T%)88±288±288±288±288±288±288±2
Oil Absorption Rate (ml/100g)50≦55≦55≦55≦55≦55≦55
Particle SizeD50(um)D50(um)D50(um)D50(um)D50(um)D50(um)D50(um)
Refractive Index1.631.631.631.631.631.631.63
PH9.99.99.99.99.99.99.9
Coefficient of expansion(mm/mm/℃)6.5 x 10-66.5 x 10-66.5 x 10-66.5 x 10-66.5 x 10-66.5 x 10-66.5 x 10-6
Aspect Ratio3.1-6.13.1-6.13.1-6.13.1-6.13.1-6.13.1-6.13.1-6.1
Melting Point1540154015401540154015401540
Chemical Properties
Fe2O30.38%0.38%0.38%0.38%0.38%0.38%0.38%
Al2O30.32%0.32%0.32%0.32%0.32%0.32%0.32%
CaO45.70%45.70%45.70%45.70%45.70%45.70%45.70%
MgO1.39%1.39%1.39%1.39%1.39%1.39%1.39%
SiO250.61%50.61%50.61%50.61%50.61%50.61%50.61%
L.O.I1.411.411.411.411.411.411.41

Remark:The properties can be customized according with clients requirements.


Application

Wollastonite is used for many different industrial purposes, including the production of:
Engineering technical plastics
Fluoro elastomer e.g. for oil sealing
heat-resistant refractory ceramics
metallurgy
wood composites
adhesives
filler in paint, paper and other products
friction products such as brake pads


Advantages

a. good compatibility.
b. Excellent Stability and products meets clients requirement absolutely
c. Excellent performance on physical properties

Quality Excellent Stability Calcium Metasilicate for sale
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