silicon metal

Silica Fume

Synonyms & keywords:  

Microsilica , Micro Silica , Silicafume , Dioxide , Silicon Dioxide , Silicon ash , Silicon Micro-powder

product introduction

Silica fume, also known as microsilica, it is a very fine pozzolanic material, composed of amorphous silica produced byelectric arc furnaces as a byproduct of the production of elemental silicon or ferro silicon alloys.Silicafume can be used in a variety of cementitious products such as concrete,grouts,and mortars as well as elastomer, polymer,refractory, ceramic and rubber applications.

HS No. 28112200 China Origin


Silicon Dioxide (SiO2) 85 to 97 %
Moisture Content Maximum 2.0 %
Loss on Ignition (LOI) Maximum 2.0 %
Oversize percent retained on 45-μm (325 sieve) Maximum 2.0 %
Specific Surface Minimum 15 m2/g
Density 170 to 650 kg/m3 (Densified Silica Fume and UnDensified Silica Fume)
Packing Jumbo bags of 900kg/bag (20 bags per 20 FCL) or 20kg or 25kg small plastic woven bags.
Payment T/T or L/C at sight
Delivery We have warehouse in Guangzhou, Shanghai, Tianjin has stocks. so that we can load goods into container once we receipt the payment.


Silica fume in concrete industry application
Silica fume in refractory industry application
Silica fume in rubber industry application
Silica fume as anti-caking agent
Silica fume as pellet binders
Silica fume in water glass industry
Silica fume in drilling industry and other fields.
Silica Fume China