Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для
Прямая поставка с завода в Китае диоксид кремния для

Прямая поставка с завода в Китае диоксид кремния для


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Количество:



Описание и отзывы


Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Sep-17-2025 0.76 $* 0.17 $*
Aug-17-2025 0.34 $* 0.33 $*
Jul-17-2025 0.87 $* 0.56 $*
Jun-17-2025 0.46 $* 0.68 $*
May-17-2025 0.18 $* 0.89 $*
Apr-17-2025 0.66 $* 0.31 $*
Mar-17-2025 0.11 $* 0.19 $*
Feb-17-2025 0.63 $* 0.63 $*
Jan-17-2025 0.55 $* 0.39 $*

Характеристики





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.
Product parameters：


Chemical &Physical Analysis
ASTM C1240-11
EN 13263:2005
/
Spec. Frequency
Spec. Frequency
SiO2 (%)
>92.0 300MT
>92.0 Weekly
So3 (%)
/
<3.0 Weekly
Cl (%)
/
<0.3 Weekly
Free CaO (%)
/
<1.0 Weekly
Free Si (%)
/
<0.4 Monthly
Alkalies(as equivalent Na2O %)
Report 300MT
/
Moisture(%)
<1.0 300MT
/
Loss on Ignition,LOI(%)
<4.0 300MT
<4.0 Weekly
Specific surface(BET -M2
/GRAM)
>18 2200MT/3 months
15-35 Monthly
Bulk density(kg/m3)
Report 300MT
/
Pozz.Activity Index(%) - 7 days accelerated curing
>110 2200MT/3 months
/
Pozz.Activity Index(%) - 28 days accelerated curing
/
>100 Monthly
Retained on 45 micron sieve (%)
<10 3 00MT
Variation from avg.retained on 45 micron (%)
<2 avg.of last 10 tests
Density(kg/m3
)
Report 300MT


Packing&Delivery




1.Packing: Net 25kg PP bag or 550kg Jumbo bag
2.Delivery time:3-7 working days after deposit
3.We have full stock and can deliver within short time.


Application


Concrete additives
Refractory


ceramic material
Rubber products


1) Cementitous Repair Products (Mortars & Grouts)
• Low permeability, increase resistance from chlorides, acids, nitrates and sulfate etc
2) Oil Well Grouting
• Increase durability and compressive strength, decrease permeability, better control of gas leakage
3) Concrete Tile, roofing & wallboard,panels
• Lightweight and improve the strength
4) other application, such as waterglass industry, thermal insulation material etc.




Hot products




About us




Our Services


1. With over 10 years experiences, KELIN company has became a leading sodium lignosulfonate manufacturer and supplier in China.
2. KELIN has multiple automatic production lines. We can make sure the timely delivery.
3. KELINoffers high-quality products at reasonable prices. We provide professional services to each customer based on their needs.
4. All of our products are produce by our professional workman and we have our high work effect foreign trade team, you can totally believe our service.
5. We have many years experience for export, we cherish every order from our honor.






FAQ


1. who are we?
We are based in Shandong, China, start from 2009,sell to Domestic Market(51.00%),Oceania(8.00%),North America(7.00%),South Asia(5.00%),South America(5.00%),Western Europe(5.00%),Mid East(4.00%),Southern Europe(4.00%),Eastern Europe(4.00%),Southeast Asia(4.00%),Central America(3.00%). There are total about 201-300 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.How can you guarantee the goods you offer is qualified?
We can provide sample, COA, MSDS and etc to help you insure the quality. And we promise every batch of product will be tested in the factory, and they can only leave the factory after the quality is qualified.

4. why should you buy from us not from other suppliers?
We have 10 years experience in production, sales and after-sale service, having professional Chemical analysis laboratory, Concrete Laboratory, Mechanicals Laboratory , providing strong technical support according to customer requirement. Sample is free.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery；
Accepted Payment Currency:USD,EUR,HKD,CNY;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,PayPal,Western Union,Cash;
Language Spoken:Chinese,Spanish,Japanese,Russian




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