Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of nano colloidal silica in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy durable nano colloidal silica for sale here from our factory.
Nano Colloidal Silica Particle-Size Options
| Custom Grade Band | Particle Size | Published Size Control | SiO₂ Content | Dispersion Form |
|---|---|---|---|---|
| Fine Nano Range | 3–20 nm | ±1 nm for sizes below 20 nm | 20–40 wt% | Aqueous liquid |
| Intermediate Range | 20–100 nm | ±5 nm for sizes above 20 nm | 20–40 wt% | Aqueous liquid |
| Large Nano Range | 100–180 nm | ±5 nm for sizes above 20 nm | 20–40 wt% | Aqueous liquid |
These are published customization bands rather than standard model codes. Confirm the target particle size, tolerance, SiO₂ content, stabilization chemistry and measurement method before sampling.
Select Nano Silica by Particle Behavior
High Surface-Area Range
Smaller particles provide higher specific surface area and stronger surface interaction at an equivalent silica mass.
Balanced Processing Range
Intermediate sizes provide a configurable balance of surface activity, flow behavior and particle packing.
Higher Packing Range
Larger particles provide lower relative surface area and different packing behavior within compatible formulations.
Align Particle-Size Reporting
Confirm whether the required value is based on a specific instrument, calculation model or surface-area correlation.
Information Needed for Nano Grade Selection
Particle size alone is not a complete specification. Provide the associated chemistry and acceptance method.
- Particle-size target: state the nominal value, acceptable distribution and tolerance.
- Test method: identify the instrument, calculation model and sample-preparation procedure.
- Dispersion chemistry: specify pH, stabilizer type, counter-ion and impurity limits.
- Physical properties: provide SiO₂ content, density, viscosity and appearance requirements.
- Compatibility: list binders, additives, pigments, solvents and process water.
- Order details: provide trial quantity, annual demand, packaging and destination country.
Request a Nano Silica Sample and Quote
Send the particle-size target, measurement method, stabilization chemistry, trial quantity and annual demand.
Request a Grade RecommendationProtect Product Stability During 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.
Direct Sunlight
Avoid prolonged exposure to direct sunlight during storage and transportation.
Container Closure
Keep containers closed to limit water evaporation and precipitation of solid silica particles.
Nano Colloidal Silica Purchasing Questions
What particle-size range is available?
The published customization envelope covers particle sizes from 3 to 180 nm.
What size-control precision is published?
Published control is ±1 nm for sizes below 20 nm and ±5 nm for sizes above 20 nm.
Why must the particle-size method be confirmed?
Different instruments and calculation models can report different particle-size values for the same dispersion.
Can the stabilization chemistry be customized?
Available product families include acidic, alkaline and alternative stabilized systems, subject to the required particle-size combination.
How should nano colloidal silica be stored?
Store it at 0–40°C, prevent freezing and direct sunlight, and keep the container closed.
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Applications of Nano Colloidal Silica
Application performance depends on particle size, distribution, stabilization chemistry, concentration and purity. Qualification should use the buyer's actual process.
Catalyst Carrier Preparation
Fine-particle grades can be evaluated where high surface area and controlled silica chemistry are required.
Precision Polishing
Controlled nanosilica dispersions may be qualified for compatible polishing and surface-finishing processes.
Functional Coatings
Selected grades can be assessed for surface hardness, adhesion or nanoscale surface modification.
Paper Surface Treatments
Nano colloidal silica may be evaluated in compatible paper coating and receptive-layer formulations.
Textile Formulations
Selected particle sizes can be tested with compatible sizing polymers and textile auxiliaries.
Ceramic and Refractory Binders
Larger particle ranges may be assessed where packing behavior and inorganic network formation are important.
