What is SLT hydrophobic fumed silica ?

SLT hydrophobic fumed silica , also known as microsilica, is an amorphous polymorph of silicon dioxide.

It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production.

Its average granule diameter is around 0.1µm, specific surface area is 15000~ 25000m2/kg

and it has extremely strong surface active.

It is a very fine pozzolanic material which can be used in a variety of cementitious products to improve their performances.

(such as concrete, grouts, mortars as well as elastomer, polymer, refractory, ceramic and rubber applications)

                                         Customer Customized for Different Usage

SLT hydrophobic fumed silica Application

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.

92% SLT hydrophobic fumed silica specifications for concrete use

Why choose our SLT hydrophobic fumed silica ?

  •High Silicon dioxide content.

   Generally the content is around 94%, also can reach 99%

  •The particle is superfine

   Average particle diameter is about 0.1μm, only 1% of the cement particles

  •Large specific surface area

   More than 18000m2/kg and with strong surface activity

  •Great fluidity

  •Manufacturer direct and stable quality

   Now we have built 8 production bases with professional laboratory and experienced engineers.

The annual output of the silica fume amounts to 40000 tons.

Also we have strict quality control system to make sure the product quality, packing and transportation etc

Service we can provide

  1. Customer customized silica fume for different usage

  2. Engineer team for pre-sale and after-sale service

  3. Customer customized packing

  4. Door-to-door delivery service

  5. Design and install dust collecting system