LUDOX® colloidal silicas are discrete, amorphous, spherical silica particles dispersed in water that provide a diverse set of functionalities in several applications. They are used in chemical formulations in various applications, including coatings, paints, refractories, concrete, catalysts, and paper.
LUDOX® grades are available in a variety of particle-size distributions, pH ranges, silica sol charge, and more. To find the best fit for your application, start by selecting the functionality you require below.
LUDOX® AS-30 is an ammonium-stabilized alkaline dispersion of amorphous silica. This colloidal silica is typically used as a binder in catalyst and high-temperature ceramic applications and as a cobinder and surface modifier in paints and coatings.
LUDOX® AS-40 is an alkaline, 40% solids aqueous dispersion of colloidal silica with a particle size of 22 nm. It is stabilized with ammonium and used as a high-temperature binder and catalyst in a wide range of industrial applications.
LUDOX® HS-30 is a colloidal silica with an average particle size of 12 nm. It is a binder in casting and ceramics applications and a cobinder to increase abrasion resistance in latex paint and coatings.
LUDOX® SM is an amorphous colloidal silica with a particle size of 7 nm. It is a highly temperature-stable binder used in coatings and refractories and as a pozzolanic additive for concrete densifiers.
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