Colloidal silica, also called silica sol, is a stable suspension of amorphous SiO₂ nanoparticles in water. Its particles typically range from 5–100 nm in diameter and remain dispersed due to electrostatic repulsion.
KosNature produces colloidal silica in various concentrations (10–50% solids) and particle sizes (10–50 nm) for industrial use.
Key Properties
High surface area and purity
Low viscosity, water-based system
Excellent adhesion, binding, and surface modification
Chemically inert and heat stable
pH-adjustable for application compatibility
Applications
Investment Casting
Ceramic shell binder in precision castings
Enhances strength, heat resistance, and surface finish
Coatings & Surface Treatment
Used for anti-reflective, anti-slip, and barrier coatings
Improves scratch resistance and durability
Polishing & CMP (Chemical Mechanical Polishing)
Slurry component for semiconductors and optical components
Ensures controlled abrasion and surface uniformity
Ceramics & Refractories
As inorganic binder or plasticizer
Improves green strength and dimensional stability
KosNature Colloidal Silica Grades
| Grade | Particle Size | SiO₂ Content | pH | Use Case |
|---|---|---|---|---|
| CS-20 | 20 nm | 30% | 9.0 | Investment casting |
| CS-15 | 15 nm | 40% | 10.0 | Polishing, CMP slurries |
| CS-30 | 30 nm | 20% | 8.5 | Ceramics, coatings |
Why KosNature?
Manufacturer of high-purity colloidal silica
Customizable size, concentration, pH options
Strict quality control and traceability
Bulk and lab-pack formats available
Documents: COA, MSDS, REACH, ISO
Need reliable colloidal silica for high-tech or industrial use? KosNature delivers consistent quality and customizable solutions to match your formulation needs.
Request a free sample or quotation.