Fumed Silica

We are offering fumed silica.
general information:
the annual capacity is 1500 tons
started to export in 2000
the max.quantity of export recahed 70 tons in 2007.
export area include turtey,india,bangladesh,canadaandeurope
characteristic:
white and colloidal micro-particle
primary micro-particle from 5-40 nm
obvious properties such as thixotropy, reinforcing, thickening and filling etc.
insoluble in all kinds of solvents and liquids except hydrofluoric acid and concentrated bases
specification:qshg 19-2011
item index
as-150
apparent white solid colloidal microparticle
specific surface area m2g 150±15
ph 3.6-4.3
heating loss weight % (mm) ≤ 1.0
burning loss weight % (mm) ≤ 1.0
apparent density gl ≤ 60
application of as-150:
1.silicone acid rubber
2.sulfurized silicone rubber at ambient temperature (low moisture content)
3.silicone neutral rubber
specification: qshg 19-2011
item index
as-200
apparent white solid colloidal micro-particle
specific surface area m2g 200±25
ph 3.6-4.3
heating loss weight % (mm) ≤ 2.0
burning loss weight % (mm) ≤ 2.0
apparent density gl ≤ 60
application of as-200:
sulphurized silicon rubber at high temperature
organic silicon defoaming agent silicone neutral rubber high oil ink
powder coating, powdered of flake preparation, cosmetics and so on
specification: qshg 19-2011
item index
as-380
apparent white solid colloidal micro-particle
specific surface area m2g 380±30
ph 3.6-4.3
heating loss weight % (mm) ≤ 2.5
burning loss weight % (mm) ≤ 2.0
apparent density gl ≤ 60