fumed silica silicon

fumed silica white carbon black
used in Unsaturated polyester resins, laminating resins and gel coat

items	specification	specification	specification
name	Fumed silica	Fumed silica	Fumed silica
grade	W-130	W-150	W-200
form	White powder	White powder	White powder
whiteness	98	98	98
SiO2 content  (dry) %	99.9	99.9	99.9
PH value (5% in water)	6.5-7.5	6.5-7.5	6.5-7.5
Average particle size	14nm	14nm	12nm
Bulk density g/l	40-50	40-50	40-50
Heating loss (105 for 2hr.)%	1.0-1.5	1.0-1.5	1.0-1.5
Ignition loss (1000 for 2hr.)%	1.5-2.0	1.5-2.0	1.5-2.0
BET Specific surface area m2/g	130±15	150±15	200±25
Produce certification No.	XK13-217-00815	XK13-217-00815	XK13-217-00815
Health certification No.	LWSZZ(2007) No. 370000-000082	LWSZZ(2007) No. 370000-000082	LWSZZ(2007) No. 370000-000082

Characteristics
Control the liquid system, Adhesive, Polymer’s rheology and thixotropy.

As additive agent used to prevent subside,thickening and prevent sagging.

HRC high temperature sulfuration silicon rubber and RTV-2K room temperature sulfuration silicon rubber.

Improve the quality of the powder, and improve the liquidity and anti-blocking characteristic.

Application

paint and coating   . Unsaturated polyester resins, laminating resins and gel coat.

HRC high temperature sulfuration silicon rubber and RTV-2K room temperature sulfuration silicon rubber.   Adhesive and fluid sealant  Printing ink  Cable rubber Plant protection   Food and cosmetics