Buy silica fume buy quartz silica sand buy microsilica

10-199 Metric Tons
>=200 Metric Tons
Min. Order
10 Metric Tons
Company Information

Quanzhou Winitoor Import & Export Co., Ltd.

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Port: Xiamen port or as request
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 5000 Metric Ton/Metric Tons per Month
Place of Origin: Fujian China
Brand Name: WINITOOR
Model Number: WT90D
Type: Silica Powder
Application: Refractory
Grade: Silica Oxide Micro Fine -400
SiO2 Content (%): 90%
Fe2O3 Content (%): 0.47%
Al2O3 Content (%): 0.42%
MgO Content (%): 0.55%
CaO Content (%): 0.51%
P2O5 Content (%): 0.789%
Color: dark grey,
Appearance: power granular
Usage: Cement Concrete Refractory
Name: high purify silica powder
Certificate: ISO9001
TiO2%: &lt;0.001
MnO%: 0.021
High quality silica fume: High quality densified Silica
CAS No: 69012-64-2
Quality: SGS testing
Packaging Detail: Packaging Details: 1.500kgs/1000kgs Jumbo bag(UV proof) with wooden Pallet 2..Small bags (20kg,25kgs per bag) 3.As per customers&#39; requirements
Product Description

 Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips.The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active.

 best price microsilica / silica fume with high purity for concretebest price microsilica / silica fume with high purity for concretebest price microsilica / silica fume with high purity for concrete


1).Appearance is as grey&white off.

2).High electrical resistivity

3).Low Permeability

4).Superior resistance to chemical attack from chlorides,acids and sulfates

5).Low chloride ion diffusion

6).High reactive Pozzolan

7).High temperature strength

8).Improved stability ingeothermal environment 

Technical Date Sheet



Company Information

 WINITOOR was established in 2004 in Quanzhou Fujian Province of China.We are specialized in the R&D.production and marketing of a series of building material: microsilica(silica fume) ,water reducing agent... they are in the application of concrete(HPC), Mortar ,Refractory,etc. We have built our own microsilica processing plant in the major area of Chinese ferro-silicon and silica metal factories,and our annual output is more than 50000 metric tons.


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Tel: +86-595-22288318    Fax: +86-595-22288319


MP: 0086 13599536248( 24 Hours on line)


WhatsApp / Wechat ID:  0086 13599536248


Email: sales10 at 


Our company promise: Reasonable price, efficient production time and satisfactory after-sales services.