Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of colloidal silica sol 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 sol for sale here from our factory.
Colloidal Silica Sol Technical Range
Colloidal silica sol is a stable aqueous dispersion of nanoscale amorphous silica particles. Peak-tech supplies selectable particle size, silica concentration, pH and stabilization systems for industrial formulation and process requirements.
| Product Family | Appearance | SiO₂ Content | Particle Size | pH Range | Density | Viscosity |
|---|---|---|---|---|---|---|
| Custom Silica Sol | Milky translucent liquid | 20–40 wt% | 3–180 nm | 2.0–10.5* | 1.10–1.30 g/cm³* | <10 mPa·s* |
*This is a product-family envelope compiled from available Peak-tech grade data. The limits are not a simultaneous specification for one grade. Achievable values depend on particle size, concentration, stabilizer and modification chemistry.
Match Colloidal Stability to the Process
Choose the Chemical System
Select sodium-, ammonium- or potassium-stabilized silica sol, or request an acidic or modified grade according to formulation compatibility.
Define Particle Size
Particle size affects surface area, packing behavior, reactivity and interaction with binders or substrates.
Balance Solids and Handling
Specify silica concentration together with viscosity, density, dilution method and pumping requirements.
Confirm Formulation Compatibility
Choose the pH window with reference to electrolytes, pigments, binders, catalysts and process-water conditions.
Information Needed for Silica Sol Recommendation
Silica sol performance depends on the full combination of colloidal properties and process conditions. Provide target values and the actual application environment before sampling.
- Stabilization system: specify sodium, ammonium, potassium, acidic, low-sodium or modified chemistry.
- Core specification: provide target SiO₂ content, particle size, pH, density and viscosity.
- Purity requirements: state sodium, total metal-ion or element-specific impurity limits.
- Process conditions: include mixing order, dilution water, temperature, shear, residence time and curing conditions.
- Compatibility: identify binders, catalysts, salts, pigments, solvents and other additives.
- Acceptance criteria: provide analytical methods, tolerances, certificate requirements and trial evaluation method.
- Order details: include sample quantity, annual demand, packaging and destination country.
Request a Colloidal Silica Sol Sample and Quote
Send your stabilization system, target particle size, SiO₂ content, pH, impurity limits, process conditions, trial quantity and annual demand.
Request a Silica Sol RecommendationMaintain Silica Sol Stability in Storage
Packaging Options
Available polyethylene packaging sizes are 25 kg, 250 kg and 1000 kg.
Storage Temperature
Store at 0–40°C and protect from freezing. Temperatures below 0°C can cause irreversible gelation.
Sunlight Protection
Avoid prolonged exposure to direct sunlight during storage and transportation.
Closed Containers
Keep containers closed to reduce water evaporation, contamination and precipitation of solid silica particles.
Colloidal Silica Sol Purchasing Questions
What is colloidal silica sol?
It is an aqueous colloidal dispersion of nanoscale amorphous silica particles. The liquid remains stable when particle size, pH, concentration and stabilization chemistry are properly controlled.
Is silica sol the same as silica gel?
No. Silica sol is a flowable colloidal dispersion. Silica gel is a three-dimensional network formed after destabilization or gelation of the dispersed particles.
Which stabilizing systems are available?
Available product families include sodium-, ammonium- and potassium-stabilized grades, plus acidic, low-sodium and modified systems. Confirm the exact specification before ordering.
Can all displayed range limits be supplied in one grade?
No. The table describes the broader product-family envelope. The feasible combination depends on stabilization chemistry, particle size, solids content and modification method.
How should colloidal silica sol be stored?
Store it at 0–40°C, protect it from freezing and direct sunlight, and keep the container securely closed.
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Industrial Applications of Colloidal Silica Sol
The suitable silica sol grade depends on particle size, concentration, stabilizing ion, pH, purity and compatibility with the buyer's process formulation.
Investment Casting
Selected silica sols serve as inorganic binders in compatible ceramic shell slurries and refractory coating systems.
Industrial Coatings
Evaluated as a nanoscale inorganic silica component in water-compatible coating and surface-treatment formulations.
Catalyst and Carrier Preparation
Suitable purity grades can be assessed as silica sources or binders in catalyst and porous carrier manufacturing.
Paper and Textile Processing
Application-specific grades may be evaluated in compatible paper coating, textile sizing and surface-treatment processes.
Precision Polishing
Controlled particle-size sols can be qualified for compatible glass, ceramic, metal or semiconductor polishing formulations.
Concrete and Refractory Systems
Appropriate grades may be assessed as inorganic binders or reactive silica components in mineral-based systems.
