LUDOX® HSA is a slightly acidic, deionized colloidal silica with a particle size of 12 nm. It's used as a binder in coatings to improve durability.
LUDOX® HSA is an acidic, 30% solids, aqueous dispersion of surface modified silica. It contains no stabilizing counter ion. LUDOX® HSA is useful in applications such as coatings or catalysts in which sodium or alkaline components aren't desired. It has excellent binding strength and provides coating formulations with added durability and heat resistance. In adhesive formulations it can be used to improve adhesion to metal and glass surfaces. LUDOX® HSA can also be used to add friction to anti-slip surface coatings. Because the particle size is relatively low it will not effect the clarity of the coating. Additionally, LUDOX® HSA can be used to bind metals for catalyst applications.
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: None
Particle Charge: Negative
Biocide ppm: 25
Primary Chemistry: Colloidal Silica
Anionic particles
Small particle size
Narrow particle size distribution
Deionized
High surface area
Excellent stability
Broad pH stability
Low sodium content
Compatible with Polar Solvents
Alkaline colloidal silica isn't compatible with formulation.
Coating with poor durability.
Coatings that are too slippery.
Coatings, catalysts, and in combination with polar solvents where alkaline components are not desired.
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