LUDOX® HS-30 is a colloidal silica with an average particle size of 12 nm particle size. It is used as a binder in casting and ceramics applications.
LUDOX® HS-30 is a 30% solids, alkaline dispersion of anionic silica. Due to its intermediate particle size it provides good binding strength as well as formulation stability.
LUDOX® HS-30 is commonly used to bind inorganic materials used in ceramics improve green strength of parts and reduce defect rates. Additionally it is used as a binder / cross-linker in coating formulations to improve cohesion and durability as well as soil resistance.
LUDOX® HS-30 is also used in adhesive formulations to promote adhesion to inorganic substrates like metal and glass. The electrostatic nature of LUDOX® HS-30 also makes it an efficient flocculant for waste water and paper making applications. Food grade material is available as well that can be used in beverage fining.
Density (g/cm³, lb/gal): 1.21, 10.1
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: 240
Primary Chemistry: Colloidal Silica
Anionic Particles
Small Particle Size
Narrow Particle Size Distribution
Alkaline pH Stability
Excellent Bond Strength
Stability in most applications
Optimum Silica Content for Binding in Ceramics and Investment Casting Applications
High defect rate in ceramics manufacturing.
Poor adhesion to metal and glass.
Coatings that scratch and mar easily.
Investment Casting
Vacuum Formed Fibrous Shapes
Refractory Cements
Stool and Mold Coatings
Insulation Board
Ceramics Binder
Adhesives & Sealants
Elastomeric Foams
Paper and Film Coatings
Inorganic Coatings
Anti-Blocking Coating
Anti-Soil Treatment
Adhesion and Wetting Promoter
Beverage Fining
Polishes
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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