LUDOX® HS-40 is a aqueous, colloidal silica with a particle size of 12 nm that is used as a high stability binder in coating and refractory applications.
LUDOX® HS-40 is an alkaline, 40% solids, aqueous dispersion of silica with a particle size of 12 nanometers. It is used as a binder of inorganic materials in ceramics, refractories, and casting to improve green strength of formed shapes. LUDOX® HS-40 is also used as a binder / cross-linker in coating applications that require improved durability and slip resistance. In water-based adhesives it can be used to promote adhesion to inorganic surfaces like metal and glass while also improving durability.
Density (g/cm³, lb/gal): 1.3, 10.8
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: 240
Primary Chemistry: Colloidal Silica
Small particle size
Narrow particle size distribution
High thermal stability
Excellent binders
Adhesion promoters
Anti-slip properties
Anti-blocking agents
Soil retardants
Reinforcing agents for improved resistance
Improved polishing performance
Adhesion failure of water based coatings and adhesives to metal and glass surfaces.
Poor durability of coatings used in applications that require abrasion resistance.
Poor thermal stability of organic binders.
Paper and cardboard coatings
Floor coatings
Surface and floor polishes
Adhesives
Caulks and sealants
Elastomeric foams
Catalyst formulations
Molecular sieves
Refractories
Cement products
Insulation boards
Functional coatings
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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