Product
FUMED SILICA/NANO SILICA
FUMED SILICA/NANO SILICA

Description of products

Hydrophobic fumed silica is made by hydrolyzing exertion chloroethane in oxy-hydrogen flame. From 2008 year till now, we began to produce fumed silica; the annual sales reached 1500 tons. Main used in paint and coating, as additive agent used to prevent subside, thickening, thixotropic agent and prevent sagging in liquid system. There is an effective changing in the aspect of liquid viscosity. 



◆The specification, feature and application

Item

specification

specification

Process

Fumed

Fumed

          Grade

W-150

W-200

Form

White powder

White powder

Whiteness

98

98

SIO2 content %

99.99

99.99

PH value

3.5-4.5

3.5-4.5

Average particle value um

12nm

14nm

Bulk density g/L

40-50

40-50

Heating loss (105 for 2h)%

0.5-1.0

0.5-1.0

Ignition loss (1000 for 2h)%

1.0-1.5

1.0-1.5

BET specific surface area m2/g

150±15

200±25

Produce certification No.

XK13-217-00815

XK13-217-00815

Health certification No.

LWSZZ(2007)No.370000-000082

LWSZZ(2007)No.370000-000082

Application scopes

Paint and coating, unsaturated polyester resins, laminating resins and gel coat, HTV and RTV-2K silicon rubber, adhesive and fluid sealant, printing ink, cable rubber, plant protection, food and cosmetics, reinforce silicon rubber, improve the quality of the powder, and improve the liquidity and anti-blocking characteristic.

Features of products

Small particle size, high BET and surface adsorption ability.