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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 including metals and oxides like aluminum, iron, and ceramic fibers used in ceramics manufacturing. LUDOX® HS-30 improves green strength of formed ceramic parts and reduces defect rates during production. Additionally it is used as a binder and cross-linker in coating formulations to improve cohesion, durability, and soil resistance. LUDOX® HS-30 is also used in adhesive formulations to promote adhesion to inorganic substrates like metal and glass. Durability of adhesives is also improved by LUDOX® HS-30. The electrostatic nature of LUDOX® HS-30 also makes it an efficient flocculant for waste water and paper making applications where positively charged contaminants must be removed. This functionality also proves useful in beverage fining applications. Food grade material is available for use in beverage fining applications.
Product Specifications
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
Features & Benefits
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
Problems Solved
High defect rate in ceramics manufacturing. Poor adhesion to metal and glass. Coatings that scratch and mar easily.
Applications
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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