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https://www.tjsunward.com/products/undensified-silica-fume-usf-850/
Undensified Silica Fume USF 850
Very Small Particle Size.
Strong Absorbability.
High Purity.
Specification of undensified microsilica Fume USF850
Test Item Typical
SiO2 (%) 88.2
MgO (%) 0.33
Elemental Silicon (%) 0.09
SO3 (%) 0.84
CL (%) 0.002
Free CaO (%) 0.91
PH 7
Moisture (%) 0.6
LOI (%) 2.09
Specific Surface (BET) (m2/g) 21.38
Activity Index (%) 108 @ 7days
Retained on 45-μm (No.325) (%) 1.52
Fluidity (cm) 19.6
Features of Undensified Silica Fume USF 850
Improve compressive strength, bond strength, abrasion resisitance, reduce permeability in construction application.
As dispersant for chemical products, micro silica instead of mica or diatomite to prevent fertilizer particles caking. Making potassium silicon compound fertilizer, protect the soil from erosion or deterioration.
With strong adsorbability and large specific surface, as anti-caking agent or pellet binding agent improve economic performance.
Applications of Undensified Silica Fume USF 850
Construction
Fertilizer
Pesticide
Extinguishant
Pellet binder
Insulating material, waterproof material, paint, coating, printing industry, etc.
For more information about chemical building materials and construction chemicals, please feel free to contact us!