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How to Disperse Fumed Silica with Silverson Machines

Fumed Silica, well known by its trade names Aerosil® and Cab-o-sil®, is very difficult to disperse for a number of reasons. The powder is extremely low density so tends to float on the surface of the liquid base.

Conventional mixers and stirrers aren’t capable of rapidly incorporating the powder and activating its thickening effect so formulations often contain excessive amounts of Fumed Silica to compensate for this.

Due to the fineness of the powder, dusting can also cause problems. The high shear action of a Silverson Machines, Inc. mixer can solve these problems while also improving your product quality, stability and mixing times.

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