LUDOX® Grade Selector Guide

Adhesion Promotion

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Alkaline pH (8-11)
pH Stable (4-11)
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LUDOX® SM

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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LUDOX® AM, 30% Silica

LUDOX® AM is a colloidal silica modified to be stable over a wide pH range. It is used primarily as a binder, surface modifier, and flocculant.

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LUDOX® HS-40

LUDOX® HS-40 is an alkaline colloidal silica that offers a good balance between high binding strength and stability in coating and refractory applications.

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LUDOX® TMA

LUDOX® TMA is an anionic colloidal silica designed to be stable over a broad pH range. It is used to prepare ethyl silicate–silica hybrid binders that create slurries used in casting.

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