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Microsilica fume/silica sand for cement China manufacturer

1-9 Tonnes
>=10 Tonnes
Min. Order
1 Tonne
Choose your specifications
Company Information

Weifang Entachem Co., Ltd.

CN Manufacturer, Trading Company
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Quick Details

CaO Content (%): Max 0.5%
CAS mark: 69012-64-2[1]
Place of Origin: Shandong China
Fe2O3 Content (%): Max 0.1%
MgO Content (%): Max.0.5%
Grade: Silica Oxide Micro Fine -400
Model Number: 273-761-1
Application: Refractory
Fe2O3 Content (%): Max 0.1%
SiO2 Content (%): 85%-88%
CaO Content (%): Max.0.5%
Brand Name: ENTACHEM
Type: Silica Powder
P2O5 Content (%): Max 0.5%
Al2O3 Content (%): Max 0.3%,Max 0.3%
Type: Silica Powder
EINECS mark: 273-761-1
P2O5 Content (%): Max.0.5%
SiO2 Content (%): 85%-88%
Application: Refractory
MgO Content (%): Max.0.5%
Packaging Detail: Quartz silica sand abrasive materials package in 25kg P. P woven bage or paper-plastic bags with PE lined.
Selling Units: Single item
Single volume: 25 cm
Single gross weight: 25.0 KG
Package Preview:
Product Description

Quartz sand have higher fireproof performance, admiral industrial quartz sand is often divided into: ordinary quartz sand, fine quartz sand, high purity quartz sand, fused quartz and silicon powder, etc.

1, ordinary quartz sand; SiO2 90-99% Fe2O3 0.06 or less - 0.02% or higher, refractoriness 1750 , the exterior part of the larger particles, the surface has a yellow skin cyst. Particle size range 5-220 mesh, grain production according to user requirement. Main application: metallurgy, silicon carbide, glass and glassware, enamel, cast steel, water filtration, paohuajian, chemical industry, spray noisy and other industries.

2, the refined quartz sand; SiO2 99-99.5% Fe2O3 0.02 or less - 0.015% or higher, select high-quality complex ore processing. 5-480 mesh size range, can be produced according to the requirements of customers, appearance white or crystal. Main use: senior glass, glass products, refractories, smelting stone, precision casting, grinding wheel grinding materials, etc.

3, high purity quartz sand; SiO2 acuity 99.5-99.9% Fe2O3 0.005% or less, is to use level 1-3 natural crystal and high quality natural stone, carefully selected, fine processing and into. Particle size range 1-0.5 mm, 0.5 -- 0.1 mm, 0.1 0.01 mm, 0.01 0.005 mm, can be produced according to the requirements of customers. In millimeter (mm)

4, fused quartz sand; Chemical composition: SiO2 99.9 99.95%; Appearance is colorless transparent block, granular or white powder. Relative density: 2.21; Mohs hardness: 7.0; PH: 6.0;

5, silicon powder; Appearance is gray or gray powder, refractoriness > 1600 . Density: 200 ~ 250 kg/m3.

6, color quartz sand; Main raw material is quartz sand, through the industrial fuel processing, became the dye color sand.



 (3) (1)

Product NameEBS-92 Microsilica or Silica fume
Chemical IndexSiO2≥92% 
Water content≤3%
Loss on ignition≤4%
Physics TargetWater demand ratio≤125%
Density uniformity≤5%
Fineness uniformity≤5%


Application area


1. is used in mortar and concrete: high-rise buildings, Seaport Wharf, Reservoir Dam, Water Conservancy, culvert, railway, highway, Bridge, Subway, tunnel, airport runway, concrete pavement and coal mine roadway anchor spray reinforcement.

In the 2. materials industry: (1) High-grade high-performance low-cement refractory pouring and prefabricated parts, the service life is three times times the ordinary castable, fire resistance increased by about 100 ℃, high temperature strength and thermal shock resistance are significantly improved.

has been widely used in: Coke oven, ironmaking, steelmaking, steel rolling, non-ferrous metals, glass, ceramics and power generation and other industries.

(2) Large iron ditch and ladle material, breathable brick, smear repair material and so on.

(3) Self-flowing refractory pouring materials and dry and wet injection construction applications.

(4) oxide combined with silicon carbide products (ceramic kiln tools, flame insulation plate, etc.).

(5) High temperature type calcium silicate lightweight insulation material.

(6) Electric porcelain kiln with corundum mullite push plate.

(7) High temperature wear-resistant materials and products.

(8) Corundum and ceramic products.

(9) Cylon combination products.

At present, in addition to the general use of pouring refractories, in the electric melt and sintered refractories have also been a large number of applications.

3 a new type of wall materials, finishes materials:

(1) Polymer mortar, thermal insulation mortar, interface agent for wall insulation.

(2) Cement-based polymer waterproof material.

(3) Light aggregate insulation energy-saving concrete and products.

(4) internal and external wall construction with putty powder processing.

4. Other uses:

(1) Silicate brick raw materials.

(2) Production of water glass. (3) to be used as a reinforcing material for organic compounds. Because its composition is similar to that of silica produced by gas phase method.

It can be used in rubber, resin, paint, paint, not full polyester and other polymer materials used as filling and reinforcement materials.
(4) Fertilizer industry used as anti-agglomeration agent.





Silica ash can fill the pores between cement particles, at the same time with hydration products to produce gel, and alkaline material magnesium oxide reaction to produce gel.

In cement-based concrete, mortar and refractory castable, the appropriate amount of silica ash can play the following role:

1, significantly improve the pressure resistance, anti-folding, anti-seepage, anti-corrosion, impact resistance and wear resistance.

2, with water retention, prevention of segregation, drainage, greatly reduce the role of concrete pump resistance. 3, significantly extend the service life of concrete.

Especially in the harsh environment such as chlorine salt pollution erosion, sulfate erosion and high humidity, the durability of concrete can be increased one or even several times.

4, greatly reduce the injection of concrete and pouring material floor ash, improve the thickness of a single spray layer.

5, is a necessary component of high-strength concrete, has C150 concrete engineering applications.

6, with about 5 times times the effect of cement, in ordinary concrete and low cement castable application can reduce costs. Improve durability.

7, effectively prevent the occurrence of concrete alkali aggregate reaction. 8, improve the density of pouring refractories.
When coexisting with Al2O3, it is easier to generate mullite facies, so that its high temperature strength, anti-thermal vibration enhancement.


Packaging Storage &


1, this product uses composite film plastic woven bag packaging.
Packing specifications are: 30 kilograms/bag, 25 kilograms/bag, 20 kilograms/bag. 2, this product should be in the dry, rain, shade environment storage. Product in water agglomeration activity loss.

It is forbidden to bask in the sun for a long time, so as not to weathering the bag and sprinkle the product.
3, this product is not dangerous goods, transport can be handled in accordance with the "non-dangerous goods rules."




Q1:Do you export to our country?

We export to our construction chemical to many area,all the country of Middle east,such as KSA,UAE and so on.Southeast Asia,such as Malaysia,Vietnam and so on.  Other country India,Korean,USA,Canada and .....


Q2:Are you the manufacturer or trader?

We are manufacturer for construction chemicals,our registered capital of RMB50 Million,and our main products is naphthalene superplasticizer,polycarboxylate superplasticizer and so on. We do domestic market and international market.



Q3:Do you pass some system certificate?

We have passed ISO9001:2008(management system certification),ISO14001:2004(Enviromental management system),OSHMS18001:1999(occupational health and safety assessment) .



Q4:What the MOQ for cooperation?

We can send the quantity As your request.



Q5:what is your payment terms.

According to the country and customers,we accept DA,DP,TT,and LC,Its can meet different customers requirement.