Silica Fume



Silica fume, also known as microsilica, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The main field of application is as pozzolanic material for high performance concrete and additive materials for refractory products.

Producing Line:


Suntek Material is the pioneer and key supplier of Chinese superior quality silica fume for international construction market. Since 2005 year, supported by specific densify technology, Suntek Silica Fume has been supplied to quite a lot of construction market including Middle East, Australia, New Zealand, Japan and Southeast Asian countries in large scale and enjoyed very high reputation in international market.

Photos of producing fields:

Furnace Collector and bag filter Conveyor pipeline Densifier


Photos of packages:

Packed by paper bag  Packed by jumbo bag 

Photos of shipment:

Shipped by bulk carrier Shipped by bulk carrier Shipped by bulk carrier

Shipped by bulk carrier  Shipped by container  Shipped by container 







85% min

90% min


3% max

3% max

Loss on ignition

6% max

6% max

Oversize (+45um)

5% max

5% max

Specific Surface

15 m2/g min

15 m2/g min

Bulk density 

550-650 kg/m3

550-650 kg/m3 

Suntek Silica Fume is fully in accordance with ASTM C 1240-05 Standard.

Packing can be in 950kg big bags, plastic sacks, repulpable paper bags, or according to customer’s specific request.

Fast navigation
Copyright © 2021 Henan Suntek International Co.,Ltd