Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of neutral 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 neutral colloidal silica for sale here from our factory.
Neutral Colloidal Silica Grade Comparison
| Model | Particle Size | SiO₂ Content | Na₂O Content | pH | Shelf Life |
|---|---|---|---|---|---|
| HN2005 | 7–10 nm | 20±1% | ≤0.1% | 7 | ≥12 months |
| HN3010 | 10–15 nm | 30±1% | ≤0.1% | 7 | ≥12 months |
| HN3020 | 20–30 nm | 30±1% | ≤0.1% | 7 | ≥12 months |
Particle size and SiO₂ content are customizable. Confirm the required values and final specification limits before sampling or ordering.
Select by Particle Size and Silica Content
HN2005
Fine-particle neutral grade with 20±1% SiO₂ and a published Na₂O limit of no more than 0.1%.
HN3010
Mid-range particle grade with 30±1% SiO₂, pH 7 and a shelf life of at least 12 months.
HN3020
Larger-particle neutral grade with 30±1% SiO₂ and the same published sodium limit as the other HN grades.
Particle Size and SiO₂ Content
Particle size and silica concentration can be adjusted after the target specification and order requirements are reviewed.
Information Needed for a Grade Recommendation
HN2005, HN3010 and HN3020 share a neutral pH of 7 and an Na₂O limit of no more than 0.1%, while particle size and silica concentration distinguish the standard grades.
- Particle size: specify the standard range or required customized value.
- Silica content: confirm the standard concentration or target customized content.
- Sodium limit: confirm that Na₂O ≤0.1% meets the purchasing specification.
- Required pH: confirm that the standard pH value of 7 is acceptable.
- Order details: provide the trial quantity, annual demand and preferred packaging.
- Quality limits: include the inspection method and acceptance criteria used for qualification.
Request a Neutral Grade Recommendation and Sample
Send the target particle size, SiO₂ content, sodium limit, trial quantity, annual demand, preferred packaging and destination country.
Request a Sample & QuoteProtect the Dispersion 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.
Neutral Colloidal Silica Purchasing Questions
Which neutral colloidal silica grades are available?
The standard grades are HN2005, HN3010 and HN3020, with particle-size ranges from 7–10 nm to 20–30 nm.
What is the standard pH of the HN grades?
HN2005, HN3010 and HN3020 are listed at pH 7.
Can particle size and SiO₂ content be customized?
Yes. Particle size and SiO₂ content are listed as customizable parameters and should be confirmed before sampling.
What packaging sizes are available?
The listed polyethylene packaging options are 25 kg, 250 kg and 1000 kg.
How should neutral colloidal silica be stored?
Store it at 0–40°C, prevent freezing and direct sunlight, and keep the container closed to limit evaporation and silica precipitation.
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Applications of Neutral Colloidal Silica
Neutral colloidal silica can be evaluated where near-neutral formulation conditions, controlled particle size and low sodium content are required. Compatibility should be confirmed under actual processing conditions before bulk use.
Paper and Inkjet Coatings
Evaluated in surface-treatment and coating formulations requiring controlled nanoscale silica under near-neutral conditions.
Textile Treatment
Used as a functional silica component in compatible textile finishing and surface-modification formulations.
Specialty Coatings
Suitable for formulation trials where neutral pH, selectable particle size and controlled silica content are required.
Precision Polishing
Evaluated in polishing systems that require aqueous silica dispersions with controlled particle-size ranges.
Ceramic Materials
Used as an inorganic binder or nano-silica component in compatible ceramic and composite formulations.
Functional Materials
Suitable for material-development projects requiring customizable particle size or silica concentration.
