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LUDOX® LS
LUDOX® LS is an alkaline colloidal silica with a 12 nanometer particle size. It is used as a high temperature stable binder in ceramics manufacturing.
LUDOX® LS is a 30% solids, aqueous dispersion of 12 nm surface modified silica. It is formulated to a lower pH than the HS grades of LUDOX® and contains less sodium stabilizing ions as well. For this reason it is particularly useful in applications where sodium can be detrimental.
Specifications
Density (g/cm³, lb/gal): 1.2, 10 Boiling Point (760 mm Hg) °C/°F: 100/212 Melting Point °C/°F: 0/32 Vapor Pressure (25°C) mm Hg: 24 Vapor Pressure (38°C) mm Hg: 48 Stabilizing Counter Ion: Sodium Particle Charge: Negative Biocide ppm: 225
Primary Chemistry: Colloidal Silica
Features & Benefits
Excellent binding strength Stability in most applications Lower pH Low sodium content Small particle size Narrow particle size distribution Compatible with organic solvents
Problems Solved
Poor green strength leading to ceramic defects. Failure of ceramic binder at high heat due to the presence of a flux material like sodium.
Applications
LUDOX® LS is used as a binder in ceramics manufacturing to provide added green strength and durability to ceramic parts.
LUDOX® LS can also be used as a binder in water-based coating formulations containing that contain organic co-solvents. It provides added durability to dried films and improves heat and chemical resistance.
In adhesive applications LUDOX® LS is used to improve adhesion to glass and metal surfaces and to increase durability of the cured adhesive.
LUDOX® LS is an excellent source of silica for concrete densifiers. The particle size of the amorphous silica in LUDOX® LS allow for it to easily penetrate the porous surface of concrete an interact with cement to increase density and hardness of the concrete.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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