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Quick Details

  • Place of Origin: China (Mainland)
  • Brand Name: WINITOOR
  • Model Number: WT92D
  • Type: Silica Powder
  • Application: Refractory
  • Grade: Silica Oxide Micro Fine -400
  • SiO2 Content (%): 91.65%
  • Fe2O3 Content (%): 0.47%
  • Al2O3 Content (%): 0.42%
  • MgO Content (%): 0.55%
  • CaO Content (%): 0.51%
  • P2O5 Content (%): 0.789%
  • Purity: 5N
  • Color: white&light grey&dark grey
  • Appearance: power granular
  • Name: high quality silica powder
  • Usage: Cement Concrete Refractory
  • Certificate: ISO9001
  • TiO2%: <0.001
  • MnO%: 0.021
  • Fluidity of our silica fume: Good fluidity Undensified Silica
  • CAS No: 69012-64-2
  • Quality: SGS testing

Packaging & Delivery

Packaging Details Packaging Details:
1.500kgs/1000kgs Jumbo bag(UV proof) with wooden Pallet
2..Small bags (20kg,25kgs per bag)
3.As per customers' requirements
Delivery Time Shipped in 15 days after payment
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.



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 

Application Area

1) Concrete or Shotcrete

      • Increase its density and strength, improve the performance on its durability,

        impact resistance, corrosion resistance, anti-permeability and frost resistance etc


2) Refractory material & Ceramics material

      • Greatly improve its density, strength and high temperature performance.


3) Cementitous Repair Products (Mortars & Grouts)

     • Low permeability, increase resistance from chlorides, acids, nitrates and sulfate etc


4) Oil Well Grouting

     • Increase durability and compressive strength, decrease permeability, better control of gas leakage


5) Concrete Tile, roofing & wallboard,panels

     • Lightweight and improve the strength


6) Polymers & rubber product


7) other application, such as waterglass industry, thermal insulation material etc.


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.

Packaging & Shipping


Our Services


Contact Us

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


MP: 0086 188 5998 6201 ( 24 Hours on line)


WhatsApp / Wechat ID:  0086 188 5998 6201


Email: sales9 at winitoor.com 


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


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Supplier's Trade Assurance Limit: US $104,000
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