Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of cationic 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 cationic colloidal silica for sale here from our factory.
Cationic Colloidal Silica Grade Comparison
| Model | Particle Size | SiO₂ Content | pH | Shelf Life |
|---|---|---|---|---|
| AP2510 | 10–20 nm | 25±1% | 3–6 | ≥6 months |
| AP2820 | 20–30 nm | 28±1% | 3–6 | ≥6 months |
| APX50-20 | 50–60 nm | 20±1% | 3–6 | ≥6 months |
| APX80-30 | 80–90 nm | 30±1% | 3–6 | ≥6 months |
| APX100-30 | 100–120 nm | 30±1% | 3–6 | ≥6 months |
| PI2020 | 20–30 nm | 20±1% | 3–6 | ≥6 months |
| P12X | 300–600 nm | 12–13% | 3–6 | ≥6 months |
Particle size is customizable. AP grades are inorganic and contain no organic material; PI2020 is organically modified. Confirm the selected grade and final specification limits before sampling or ordering.
Select by Particle Size, Solids and Modification Type
AP2510 and AP2820
Fine-particle inorganic grades with 25±1% or 28±1% SiO₂ and no organic material.
APX Series
Three inorganic grades covering 50–60, 80–90 and 100–120 nm particle-size ranges.
PI2020
Organically modified grade with 20–30 nm particles and 20±1% SiO₂.
P12X
Large-particle specialty grade with 12–13% SiO₂ and the widest published particle-size range.
Information Needed for a Grade Recommendation
The seven standard grades share a published pH range of 3–6, while particle size, SiO₂ content and modification type distinguish the available options.
- Particle size: specify a standard range or the required customized value.
- Silica content: confirm the required SiO₂ concentration.
- Modification type: state whether an inorganic AP grade, organically modified PI grade or P12X is required.
- Required pH: confirm that the published pH range of 3–6 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 Cationic Grade Recommendation and Sample
Send the target particle size, SiO₂ content, modification requirement, 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.
Cationic Colloidal Silica Purchasing Questions
Which cationic colloidal silica grades are available?
The listed grades are AP2510, AP2820, APX50-20, APX80-30, APX100-30, PI2020 and P12X.
How do AP and PI grades differ?
AP grades are inorganic and contain no organic material, while PI2020 is listed as an organically modified grade.
Can the particle size be customized?
Yes. Particle size is listed as a customizable parameter 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 cationic 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 Cationic Colloidal Silica
Cationic colloidal silica can be evaluated for negatively charged surfaces and formulations requiring positively charged silica particles. Compatibility should be confirmed under actual processing conditions before bulk use.
Digital Printing Media
Evaluated in ink-receptive coatings where cationic silica supports liquid absorption, surface control and print definition.
Superhydrophilic Coatings
Used in compatible surface-treatment systems designed to provide strong water spreading and hydrophilic behavior.
Paper and Film Coatings
Suitable for coating formulations requiring positively charged silica and controlled particle-size options.
Textile Surface Treatment
Evaluated as a functional silica component in compatible textile finishing and surface-modification formulations.
Anti-Blocking Systems
P12X can be evaluated as a specialty anti-blocking grade for compatible film and cellophane formulations.
Specialty Functional Coatings
Applicable to formulation-development projects requiring inorganic or organically modified cationic silica grades.
