Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of electronic grade 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 electronic grade colloidal silica for sale here from our factory.
Electronic Grade Colloidal Silica Comparison
| Model | Particle Size | SiO₂ Content | Metal Ions | pH | Shelf Life |
|---|---|---|---|---|---|
| HP25D10 | 10–20 nm | 25±1% | ＜20 ppm | 7–9 | ≥12 months |
| HP3010 | 10–20 nm | 30±1% | ＜50 ppm | 7–9 | ≥12 months |
| HP2510A | 10–20 nm | 21–25% | ＜50 ppm | 2–4 | ≥12 months |
| HP4010A | 10–20 nm | 38–42% | ＜50 ppm | 2–4 | ≥12 months |
Aluminum present as Al₂O₃ is excluded from the listed metal-ion total. HP25D10 and HP3010 are NH₄⁺-stabilized. Electronic qualification requires element-by-element limits and agreed analytical methods in addition to the published total.
Select by Contamination Risk and Process Chemistry
Lowest Published Total
HP25D10 provides the tightest published aggregate metal-ion limit with NH₄⁺ stabilization and pH 7–9.
Define the Contamination Budget
State maximum limits for sodium, iron, aluminum and other process-sensitive elements rather than relying only on a total value.
Control Particle Metrology
All four published grades share the same nominal size range; confirm distribution, agglomerate limits and the measurement method.
Match Process Chemistry
Select an acidic or near-neutral grade according to chemical compatibility and contamination-control requirements.
Information Needed for Electronic Grade Qualification
Electronic-grade approval requires contamination, particle and lot-control criteria beyond the basic product-family table.
- Elemental limits: provide maximum values for each controlled metal and the reporting basis.
- Analytical methods: specify ICP-MS, ICP-OES or other required methods, detection limits and sample preparation.
- Particle specification: define nominal size, distribution, agglomerate limit and metrology method.
- Chemistry: confirm SiO₂ content, pH, stabilizer, conductivity and permitted ionic species.
- Lot control: state COA fields, sampling rules, retention samples and change-notification requirements.
- Order details: include trial quantity, annual demand, clean packaging and destination country.
Request an Electronic Grade Sample and Quote
Send the element-specific limits, particle specification, analytical methods, trial quantity and annual demand.
Request Qualification SupportProtect 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.
Electronic Grade Colloidal Silica Purchasing Questions
Which electronic-grade candidate models are published?
The high-purity candidate grades are HP25D10, HP3010, HP2510A and HP4010A.
Which grade has the lowest published metal-ion total?
HP25D10 is listed below 20 ppm; the other published HP grades are listed below 50 ppm.
Is a total metal-ion limit sufficient for electronic qualification?
Not always. Buyers should define element-specific limits, analytical methods, detection limits and reporting basis.
Is aluminum included in the published metal-ion total?
No. Aluminum present as Al₂O₃ is excluded from the published total and should be specified separately if controlled.
What lot-control documents should be requested?
Define required COA fields, test methods, sampling rules, retention samples and change-notification expectations before qualification.
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Applications of Electronic Grade Colloidal Silica
Electronic use requires qualification against element-specific contamination limits, particle distribution, process chemistry and clean-handling requirements.
Semiconductor CMP Formulations
Evaluated as an abrasive dispersion where particle control, metal contamination and slurry chemistry are tightly specified.
Electronic Substrate Polishing
Suitable candidates can be tested for compatible ceramic, glass and other precision electronic substrates.
Electronic Ceramic Processing
High-purity grades may be assessed as silica sources or binders where trace metals affect material performance.
Optical and Display Materials
Controlled nanosilica can be qualified for compatible precision-finishing and functional-material processes.
Battery Separator Coatings
Selected high-purity grades may be evaluated in compatible inorganic separator-coating formulations.
Custom Electronic Materials
Supports development requiring defined element limits, particle metrology, lot control and clean packaging.
