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LUDOX® HSA
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.
Fulfilled By ChemPoint
- Manufacturer: Grace
- Product Line: LUDOX® Monodispersed Colloidal Silica
- Product: LUDOX® Colloidal Silica
- Industries: Adhesives | Coatings | Facility Infrastructure | Metal Processing & Fabrication
- Authorized Countries: United States
Fulfilled By ChemPoint
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Overview
LUDOX® HSA is an acidic, 30% solids, aqueous dispersion of surface modified silica. LUDOX® HSA is unique in that it contains no stabilizing counter ion. LUDOX® HSA is useful in applications sodium or alkaline components used to stabilize colloidal silica aren't desired. LUDOX® HSA particles have a very high surface area and is excellent at binding metals, siliceous material, oxides, and polymers with reactive functional groups.
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: None
Particle Charge: Negative
Biocide ppm: 25
Primary Chemistry: Colloidal Silica
Features & Benefits
- 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
Problems Solved
Alkaline colloidal silica isn't compatible with formulation.
Coatings with poor durability.
Surface is too slippery.
Failure of binding resins caused by exposure to high heat.
Applications
LUDOX® HSA can be added to coating formulations and will not interfere with polar solvents in the formulation. The LUDOX® HSA particles remain in the cured coating and improve film durability and anti-blocking properties. Additionally, the particle size of LUDOX® HSA allows for it to be added to coatings without altering the clarity of the dried film.
In adhesive formulations LUDOX® HSA can be used to improve adhesion to metal and glass surfaces.
LUDOX® HSA is very efficient at binding and is often used to bind metals for catalyst applications.
Related Applications
Adhesives
Coatings
- Aerospace Coatings
- Architectural Coatings
- Automotive OEM Coatings
- Marine Coatings
- Metal Coatings
- Paper Coatings
Related Chemistries
Related End Markets
Facility Infrastructure
Metal Processing & Fabrication
Related Functions
Adhesives
Coatings
Metal Processing & Fabrication
Related Substrates
Metal Processing & Fabrication
Related Technologies
Adhesives
Coatings
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