1. Product Profile
●    Fumed silica of Qingyuan Xinhui chemical Co., Ltd is manufactured by controlled combustion of highly purified chlorosilanes with oxygen and hydrogen. A schematic diagram is given below. The silica generated in the flame is transported to HCL removal process, cooling process, that be made from hydrophilic fumed silica.

2. Physical- and chemical data

Product No.	specific surface area m²/g	Loss on drying (105℃/2h)	Loss on ignition (1000℃/2h)	Bulk density	pH wert (5% in water)	Silica content (dry basic)
	m2/g	≤, %	≤, %	g/l		≥, %
MD-150	150±20	3	2.5	40-60	3.5-4.5	99
MD-200	200±30	3	2.5	40-60	3.5-4.5	99
MD-968	300±35	3	2.5	50-70	3.5-4.5	99

3. Main features
●    Fumed silica use in coating, unsaturation polyester system as thickeners and thixotropic agent.
●    Fumed silica use in silica rubber system that can enhance reinforce, stretching,anti-attrition
●    Fumed silica use in pigment solution that can to prevent sediment
●    Fumed silica use in powder coating that can promote fluidity and caking resistant effectively

4. Application areas
●    coating system, unsaturation polyester, silica rubber, adhesive, printing ink. etc.

 
5. Package
net weight 5kg/bag or 10kg/bag

6. Storage
Once opened, the bag must be tightened in order to prevent the rest of the product from damp and pollution.

 

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