Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of colloidal silica solution in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy durable colloidal silica solution for sale here from our factory.
Colloidal Silica Solution for Industrial Formulations
Colloidal silica solution is the common commercial name for a stable aqueous dispersion of nanoscale amorphous SiO₂ particles. Peak-tech supplies acidic, alkaline, ion-stabilized and modified product directions for binding, coating, polishing, catalyst, paper, textile, construction and other industrial processes.
Colloidal Silica Solution Technical Range
| Property | Family Range / Direction | Selection Impact | Order Confirmation |
|---|---|---|---|
| Appearance | Milky translucent liquid | Visual condition and handling | Grade-specific standard |
| SiO₂ Content | 20–40 wt% | Delivered solids and water load | Target and tolerance |
| Particle Size | 3–180 nm | Surface area, packing and reactivity | Method and distribution |
| pH | 2.0–10.5 | Stability and compatibility | Grade-specific range |
| Stabilization | Sodium, ammonium, potassium or modified | Ionic profile and process fit | Ion and impurity requirements |
| Packaging | 25 kg, 250 kg and 1000 kg | Trial, production and bulk handling | Grade and shipment plan |
The ranges describe the wider Peak-tech portfolio and cannot be assumed as one simultaneous grade. Confirm the feasible combination of particle size, solids, pH, stabilizer, purity and viscosity.
Colloidal Silica Solution Compared with Other Silica Forms
Discrete Nano SiO₂ Particles in Water
Used where controlled particle size, surface activity, inorganic binding, polishing or surface modification is required.
Soluble Alkali Silicate Chemistry
Contains dissolved silicate species and significantly different alkali chemistry. It should not be substituted for colloidal silica without process redesign.
Three-Dimensional Silica Network
Gel forms after destabilization or network development and is no longer the same free-flowing colloidal dispersion.
Solid Particulate Product
Dry fumed, precipitated or other silica powders have different handling and dispersion behavior and are not direct liquid-sol replacements.
How to Select a Colloidal Silica Solution
- Application: identify casting, refractory, coating, catalyst, CMP, paper, textile, cement, battery or another process.
- Particle requirement: define target size, distribution and the function it must provide.
- Solids and water balance: state the desired SiO₂ content, dosage and drying or dilution constraints.
- pH and ionic system: match the sol to binders, salts, pigments, catalysts, fibers, substrates and process water.
- Purity: provide sodium, metal-ion or element-specific limits for contamination-sensitive applications.
- Process conditions: include addition order, dilution, shear, temperature, hold time, drying, curing, firing or polishing.
- Commercial details: provide sample quantity, annual demand, packaging, documentation and destination country.
Request a Colloidal Silica Solution Grade
Send the application, target particle size, SiO₂ content, pH, stabilizer, purity limits, process conditions, packaging and trial quantity.
Request a Silica Solution RecommendationExplore Colloidal Silica Solution Options
Colloidal Silica Solution Questions
What is colloidal silica solution?
It is a stable water-based dispersion of nanoscale amorphous silica particles. "Solution" is the common commercial term, although the silica is colloidally dispersed rather than molecularly dissolved.
Is colloidal silica solution the same as sodium silicate?
No. Sodium silicate is soluble alkali silicate chemistry, while colloidal silica contains discrete amorphous SiO₂ particles. Their alkalinity and application behavior differ.
What solids contents are available?
The wider Peak-tech family covers approximately 20–40 wt% SiO₂, including common 30% and 40% directions. Exact availability depends on the grade.
Can colloidal silica solution be diluted?
Yes, when compatible water and a validated procedure are used. Hardness, salts, pH and addition sequence can destabilize the dispersion.
How should colloidal silica solution be stored?
Keep it sealed, protect it from freezing, contamination and prolonged direct sunlight, and follow the selected grade's TDS and label temperature range.
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Colloidal Silica Solution Uses
Different uses require different particle size, solids, pH, charge and purity. Validate each grade in the complete production formulation.
Investment Casting
Provides an inorganic binder for face and backup ceramic-shell slurry development.
Refractory Materials
Forms heat-resistant inorganic networks in compatible refractory mixes and coatings.
Industrial Coatings
Supports hardness, adhesion, abrasion resistance and mineral-surface modification.
Catalyst Supports
Contributes silica structure, surface area and binder function for carrier systems.
Precision Polishing
Controlled particles support CMP, optical glass and ceramic polishing formulations.
Paper, Textile and Construction
Selected grades serve as treatment, sizing, coating, binder or densifier components.
