Colloidal Silica - A Versatile Problem Solver, Product Article

Applications in Binding

LUDOX® colloidal silica exhibits strong ionic and hydrogen bonding with both granular and fibrous materials. These bonds are renowned for their thermal stability and chemical inertness, making them ideal for:

• Investment Casting Slurries
• Vacuum Formed Refractories
• Specialty Coatings
• Catalysts
• Insulation Boards

Surface Modification Uses

The silica particles in LUDOX® create robust adherence to a wide variety of surfaces via ionic and hydrogen bonds. Once on a surface, they enhance the coefficient of friction, proving useful for:

• Paper & Cardboard
• Flooring
• Polishing Slurries
• Industrial and Architectural Coatings

Flocculant Applications

LUDOX® colloidal silica is offered in grades possessing both anionic and cationic sol charges. When added to solutions, LUDOX® particles ionically bond with oppositely charged particles, causing them to settle out of suspension. This characteristic makes it an excellent flocculant for:

• Paper Retention and Drainage
• Beverage Fining (beer and wine)
• Insulation Boards

The unique attributes of LUDOX® Colloidal Silica as a binder and surface modifier are further illustrated in the short video below.

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Surfaces that are hydrophobic tend to attract dirt, whereas more hydrophilic surfaces repel it, a principle known as anti-soiling. Learn more about this feature by reading 5 Must-Have Features in a drying room requirements.

To discover more intriguing details, please visit Hebei Silicon Research Electronic Materials Co., L.

Silica particles in colloidal silica dispersions are rich in surface hydroxyl-silanol groups, enhancing their hydrophilic nature. When used in coatings, these particles create a less tacky, more hydrophilic surface. Consequently, water forms a film on the surface, allowing dirt to wash away easily.

We proudly stand as the world’s premier supplier of hydrophobic colloidal silica. As your comprehensive supplier, our specialized staff are ready to assist you in finding the perfect product for your needs.