LUDOX® AS-30 is an alkaline dispersion of colloidal silica. It is stabilized with Ammonium and typically used as a binder in high temperature applications.
LUDOX® AS-30 is a 30% aqueous dispersion of colloidal silica with a particle size of 12 nm. The dispersion is stabilized with ammonium hydroxide. LUDOX® AS-30 is an excellent binder and improves the strength and durability of ceramics, refractory materials, adhesives, and coatings. It is commonly used in applications where sodium is detrimental such as high temperature refractories and catalysts.
Chemistry: Colloidal Silica
Silica Content: 29-31%
Specific Surface Area: 198-258 m2/g
pH: 9.1-9.7
Specific Gravity: 1.2 (@25°C)
Viscosity: 11 cP (@25°C)
Particle Charge: Negative
Stabilizing Counter Ion: Ammonium
Primary Chemistry: Colloidal Silica
Negative Sols (Anionic)
Small Particle Size
Narrow Particle Size Distribution
Ammonium Counter Ion
Excellent Binding Strength
Outstanding Formulation Stability
Extreme Temperature Resistance
Poor temperature resistance
Lack of green strength
Ceramic defects
Refractories
Refractory Coatings
Vacuum Formed Fibrous Shapes
Catalysts
Molecular Sieves
Paper & Film Coating
Latex Films
Electrical Steel Coatings
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