How to Best Mix Fumed Silica (Dispersing Aerosil®/Cab-o-sil®) @silversonmachines

Uploaded May 2019 | Updated September 2026, 6 hours ago

Fumed silica, well known by its tradenames Aerosil® and Cab-o-sil®, can be very difficult to disperse.

Due to its ultra-low density, fumed silica has a tendency to float on liquid surfaces. Conventional mixers and stirrers struggle to efficiently incorporate it and activate its thickening capabilities. As a result, formulations frequently call for excessive amounts of fumed silica to offset these inefficiencies. Additionally, the powder’s fine nature often causes dusting issues.

Enter the Silverson mixer with its powerful high shear action, offering a solution to these challenges. Not only does it efficiently disperse fumed silica, but it also elevates your product quality, stability, and mixing times.

⏱️ Chapters
0:00 What is Fumed Silica?
0:44 Overcoming Low Density and Dusting Issues
1:12 Achieving Agglomerate-Free Silica Dispersions with Silverson
2:02 Using Powder/Liquid Mixers and the Ultramix for mixing Fumed Silica

Explore the transformative capabilities of high shear mixers:
silverson.com/us/resource-library/application-reports/dispersion-of-fumed-silica

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youtube.com/@silversonmachines

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How to Best Mix Fumed Silica (Dispersing Aerosil®/Cab-o-sil®)

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$How to Mix Guar Gum Guar Gum (E412) is readily soluble in cold water, forming a high viscosity solution at low concentrations which increases in viscosity as temperature rises. It is widely used for its gelling, thickening and stabilising effect on emulsions and suspensions and often blended with other rheology modifiers, particularly Xanthan gum as the two combine to give greatly increased effects. If you’re using a conventional agitator the powder must be added carefully at a controlled rate to reduce the formation of agglomerates – but it becomes increasingly difficult to incorporate the powder as viscosity increases. Some formulations contain unnecessarily high levels of gum to compensate for poor yield due to filtering out of agglomerates. Silverson high shear mixers can produce an agglomerate-free dispersion in a fraction of the time taken by conventional agitators. With all Silverson mixers, maximized yield can allow products to be reformulated with reduced gum content, cutting raw material costs and process times. ⏱️ Chapters 0:00 What is Guar Gum and How is it Used? 0:43 How to overcome Guar Gum Lumping Issues 1:08 Achieving Agglomerate-Free Guar Gum Dispersion with Silverson 1:54 Scaling Up: From Batch Mixers to the Flashmix To find out more contact us today or visit our website: https://www.silverson.com/us/resource-library/application-reports/preparation-of-guar-gum-solutions Stay up-to-date with our newest videos by subscribing to our YouTube channel: https://www.youtube.com/@silversonmachines Follow us on LinkedIn for the latest updates & news: https://www.linkedin.com/company/silverson-machines/$

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