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Top Supplier Cities : Qingdao   -   Shijiazhuang  
Sep-11-23
Aug-14-18
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Sep-11-23
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Jun-19-04
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May-15-23
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May-08-25

Silica Fume High Strength Concrete Additive, Industrial grade

$200 - $300 / Metric Ton (FOB)
MOQ: Not Specified
 
We supply Silica Fume (Micro silica) an ultra-fine, amorphous silicon dioxide by-product from the production of silicon or ferrosilicon alloys. It is a high-performance pozzolanic material, widely used in concrete, refractories, and cementitious systems to improve strength, density, and durability.

-- Product Information

Product Name: Silica Fume / Micro silica

CAS No.: 69012-64-2

Main Content: SiO2 85-96%

Form: Grey or white fine powder

Particle Size: ~0.1 m (average)

Bulk Density: 200-700 kg/m³

Packing: 10kg/20kg/25kg bags, jumbo bags, or custom

HS Code: 281122

-- Key Features

Extremely fine particles with high surface area

Pozzolanic reactivity: forms additional C-S-H gel in cement

Enhances compressive & flexural strength

Reduces permeability, shrinkage, and bleeding

Improves abrasion, sulfate, and chemical resistance

Ideal for marine, dam, tunnel, and oil well cementing

-- Main Applications

High-performance concrete (HPC)

Precast and ultra-high strength concrete (UHPC)

Shotcrete for tunnels, bridges, and mining

Refractory castables and gunning mixes

Oil well grouting and marine structures

Anti-corrosion and waterproof concrete formulations

-- Why Choose Us?

High SiO2 content (85-96%) with consistent quality

Options in un-densifiedd, densified, or slurry form

Technical support for mix design and performance optimization

Full documents: COA, MSDS, SGS, TDS available

Export-ready packaging and timely shipment

Silica Fume is your solution for stronger, more durable, and longer-lasting concrete in the most demanding environments.

Contact us today for technical datasheet and free sample!
Nov-01-23

China Bentonite Clay

$88
MOQ: Not Specified
 
[AVAILABLE] CHINA BENTONITE CLAY in adhesive,suspending,gel ,catalyzer . low price high quality

The main uses of bentonite are in drilling mud # a binder#purifier#absorbent#and carrier for fertilizers # pesticides. As of around 1990, almost half of the US production of bentonite was used as drilling mud. #Minor uses include filler#sealant#catalyst in petroleum refining. Calcium bentonite is sometimes marketed as #fuller's earth, whose uses overlap with those of other forms of bentonite
Oct-14-23
 
Fluorite powder Request for Quotation
Calcium fluoride
CAS: 7789-75-5
Molecular Formula: CaF2
CaF2 98.38%
Size 200mesh

Metallurgical Industry# Building Materials Industry# Chemical Industry# jewelry and crafts
Apr-03-24

Fumde Silica

$3.30K - $3.60K
MOQ: Not Specified
Supplier From Hangzhou, Zhejiang, China
 
Product Name: Fumde Silica
Other Name: White Carbon Black; SiO2;
Molecular Formula: SiO2(H2O)x
Molecular Weight (g/mol): 60.08
Melting Point ( �°C): 1610
Boiling Point (�°C): 100 Min.
Density (25 �°C, g/cm3): 2.6
Refractive Index (n20 D): 1.544

Specification:

Testing Item Standard
Content (%) 99.8 Min.
Specific surface area (m2/g) 176-225
pH 3.6-4.5
Burning loss weight (m/m, %) 2.5 Max.
Volatiles Content (105 C, %) 3.0 Max.
Appearance White solid colloidal micro-particle

HS CODEï¼?2811229000
CAS No.: 10279-57-9
EINECS: 238-878-4

Packages: 25kgs/drum or as customized package.

Usage: Used as a paint coating filler.
Jul-29-23

Quartz

$1
MOQ: Not Specified
 
We sell quartz and other product.
Mar-01-22

Precipitated Silica

$830
MOQ: Not Specified
 
BET 120-195
DBP 2.0-3.0
more details pls contact us, thanks.
Jan-03-23
 
We supply CaF2:90% (Metallurgical Grade Fluorspar), SiO2:8% max, S:0.03%max, P:0.03%max , Size:customized . Quantity: 2000 mt/month, Best Price! Competitive price
Nov-29-22
 
Kaolin clay

Chemical composition Al2O3, SiO2,Fe2O3,TiO2,Na2O
Appearance White powder
Package 25kg woven bag/kraft paper bag, 1000kg big bag
Characteristics Calcined kaolin is an aluminum silicate body pigment and multifunctional additive processed by high-quality kaolin us with special technology. It has high whiteness, low impurity content, good light scattering performance and easy dispersion.
Application Suitable for high-grade paints, coatings, inks, paper, rubber, plastics, wire and cable and adhesives, which can improve the whiteness, hiding power, dryness and other properties of products, also reduce product costs.
Nov-04-22
 
CaF2:70% min
SiO2: 24% max
Size: 10-50mm
Moisture: 0.5% max
Nov-04-22
 
CaF2 80% min
SiO2 15% max
Application: Steel-making, metallurgical industry
Color: green, blue, purple, white, etc.
Size: customized 0-30mm 0-5mm 0-10mm
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