Silica Sol (siblings)
Alkaline Silica Sol (KOH or NH₃ Stabilized)
Alkaline silica sol stabilized with KOH (potassium hydroxide) or NH₃ (ammonia) is the dominant chemistry for industrial applications. The pH 9-11 alkaline range maintains particle stability over 12+ month storage. Used in investment casting, paper coating, and refractory binders.
Specifications
| Particle Size (D50) | 10-30 nm typical |
| SiO₂ Content | 30-40 wt% typical |
| pH | 9-11 |
| Stabilizer | KOH or NH₃ |
| Storage Stability | 12+ months @ 5-35 °C |
Applications
- Investment casting (turbine blades, complex geometries)
- Refractory paint and coating binder
- Paper-coating pigment binder
- Anti-slip floor finish
- Catalyst support binder
Key Features
- Highest particle stability of any silica sol form
- Compatible with most water-borne formulations
- Industrial-grade pricing (lower cost than acidic or NH₃-only grades)
- Compatible with mineral fillers and water-borne binders
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Stabilizer
KOH / NH₃
pH
9-11
Particle Size
10-30 nm
Sample
Within 5 business days
Availability
In Stock