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LUDOX® AM, 30% Silica
LUDOX® AM is a colloidal silica modified to be stable over a wide pH range. It is used primarily as a binder, surface modifier, and flocculant.
Fulfilled By ChemPoint
- Manufacturer: Grace
- Product Line: LUDOX® Monodispersed Colloidal Silica
- Product: LUDOX® Colloidal Silica
- Industries: Adhesives | Building & Construction | Coatings | Inks
- Authorized Countries: Canada | United States
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Overview
LUDOX® AM is an aqueous dispersion of 30% silica with a particle size of 12 nm. Its silica particles have been modified with aluminate ions to give broader pH stability than standard alkali-stabilized LUDOX® grades. LUDOX® AM can be incorporated at neutral to slightly acidic pH to yield a stable formulation, allowing for use in a variety of applications.
LUDOX® AM is used as a binding additive in latex-based coatings and adhesive formulations to improve durability and cohesive strength. Like other LUDOX® grades, it is ideal for ceramic and refractory applications, where it serves as a binder to increase mechanical and thermal shock resistance. LUDOX® AM may also be used as a flocculant for positively charged particles in wastewater and a retention aid for paper manufacturing.
Specifications
Silica content (%): 29–31
Specific surface area (m2/g): 198–258
pH: 8.6–9.3
Specific gravity (at 25°C): 1.2
Viscosity (at 25°C, cPs, max): 25
Particle charge: Negative
Stabilizing counter ion: Sodium
Biocide (ppm): 25
Primary Chemistry: Colloidal silica
Primary Chemistry: Colloidal Silica
Features & Benefits
Negative sol; anionic
Small particle size
Narrow particle size distribution
Excellent binder
Reinforcing agent
Antislip agent
Delustrant
Broad pH stability
Increases abrasion resistance
Problems Solved
Poor cohesive strength and abrasion resistance of coatings and adhesives
Low thermal and mechanical shock resistance of ceramics and refractories
Blocking and soil deposition issues with architectural coatings
Incompatibility of colloidal silica binders with acidic formulations
Applications
Ceramics
Refractories
Paints
Coatings
Adhesives
Floor polishes
Related Applications
Adhesives
Building & Construction
Coatings
- Aerospace Coatings
- Appliances & Machinery Coatings
- Architectural Coatings
- Brick Coatings
- Coil Coatings
- Floor Coatings
- Industrial Coatings
- Marine Coatings
- Metal Coatings
- Wax and Polishes
Related Chemistries
Adhesives
Related Functions
Adhesives
Coatings
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