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LUDOX® AS-40 is an alkaline 40% aqueous dispersion of colloidal silica with a particle size of 22 nm. It is stabilized with ammonium and used as a high temp binder and catalyst in a wide range of industrial applications.
LUDOX® colloidal silica products are water dispersions of amorphous silica particles. They are typically used as binders, surface modifiers, and flocculants, especially when high thermal stability is required.
LUDOX® AS-40 is an excellent binder for high-temperature applications such as vacuum formed fibrous shapes. It is also used in catalyst applications such as zeolites and emission control products. LUDOX® AS-40 is preferred where the presence of sodium is detrimental.
Anionic Particles Excellent surface modification Outstanding formulation stability Suitable for high temperature applications High binder performance Small particle size Ammonium stabilized Stabilized against gelation Non-porous and uniformed
Problems Solved
Instability of binders in extremely high temperature applications. Failure of binding material caused by sodium. Poor cohesive strength of ceramic and refractory materials.
Applications
Paper and film coatings Industrial water-based coatings Latex coatings Electrical steel inorganic coatings Catalyst formulations Molecular sieves Vacuum formed refractories
LUDOX® Colloidal Silica is used in a wide range of processes to improve the and resiliency of building materials. Formulating LUDOX™ into concrete, coatings, adhesives, and sealants increases productivity and reduces cost while boosting the strength and consistency of the end product.
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