Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of colloidal silica 30% 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 30% for sale here from our factory.
Colloidal Silica 30% Grade Comparison
| Model | Grade Direction | SiO₂ Content | Particle Size | pH | Published Qualifier | Shelf Life |
|---|---|---|---|---|---|---|
| P3010 | Potassium stabilized | 30±1% | 10–20 nm | 9–10 | K₂O ≤0.3% | ≥12 months |
| LA3010A | Low sodium | 30±1% | 10–20 nm | 8–10 | Na₂O ≤0.01% | ≥12 months |
| AM3010 | Ammonium stabilized | 30±1% | 10–15 nm | 8–10 | Na₂O ≤0.1% | ≥12 months |
| HP3010 | High purity | 30±1% | 10–20 nm | 7–9 | Metal ions <50 ppm | ≥12 months |
| CS3010A | Carrier-grade direction | 30±1% | 10–20 nm | 8–10 | Na₂O ≤0.01% | ≥12 months |
| PC20 | Casting-grade direction | 30±1% | 10–20 nm | 9.5–10.5 | Na₂O ≤0.4% | ≥12 months |
All listed representative grades contain 30±1% SiO₂, but they are not interchangeable. Stabilizer, impurity limit, particle size and pH must be matched to the complete purchasing specification.
Concentration Is Only the Starting Point
Select the Stabilization System
Choose sodium-controlled, potassium or ammonium stabilization according to chemical compatibility.
Confirm Particle Requirements
Most listed 30% grades use 10–20 nm particles, while AM3010 is specified at 10–15 nm.
Match the Working pH
The representative grades cover different pH windows; use the exact grade range rather than a family-wide assumption.
Define the Critical Limit
Specify Na₂O, K₂O, total metals or element-specific impurities according to the purchasing requirement.
Information Needed for a 30% Grade Recommendation
Confirm the parameters surrounding the 30±1% SiO₂ requirement so the appropriate family can be selected.
- Stabilization: specify sodium-controlled, potassium, ammonium or another required chemistry.
- Particle size: provide the target, distribution, tolerance and measurement method.
- pH: state the compatible working range and surrounding formulation conditions.
- Purity: define Na₂O, K₂O, total-metal or element-specific impurity limits.
- Quality requirements: include analytical methods, COA fields and acceptance limits.
- Order details: provide trial quantity, annual demand, packaging and destination country.
Request a 30% Colloidal Silica Sample and Quote
Send the stabilization direction, particle size, pH, impurity limits, 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.
Colloidal Silica 30% Purchasing Questions
Does 30% colloidal silica mean exactly 30.0%?
The representative published grades are specified at 30±1% SiO₂.
Are all 30% colloidal silica grades interchangeable?
No. Stabilization chemistry, particle size, pH and impurity limits differ among grade families.
Which particle sizes are listed?
The representative grades are listed at 10–15 nm or 10–20 nm.
Which impurity limits should be specified?
Depending on the grade family, buyers may need to specify Na₂O, K₂O, total metal ions or individual elemental limits.
How should 30% 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 Colloidal Silica 30%
A 30% SiO₂ concentration is available across several grade families. Application suitability depends on stabilization, particle size, pH and impurity limits.
Industrial Coatings
Selected 30% grades can be evaluated as inorganic silica components in compatible coating formulations.
Inorganic Binder Systems
Suitable grades may be tested in mineral, ceramic and refractory binder formulations.
Catalyst Carrier Preparation
Controlled-sodium 30% grades can be assessed as silica sources or binders in carrier processes.
Precision Casting
Casting-oriented 30% grades can be evaluated in compatible ceramic shell slurry systems.
Electronic and Precision Materials
High-purity 30% grades may be qualified where metal-ion and particle specifications are controlled.
Custom Formulation Development
Supports projects requiring 30±1% SiO₂ with a selected counter-ion, pH and impurity profile.
