Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of colloidal silica for papermaking 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 for papermaking for sale here from our factory.
Colloidal Silica for Papermaking 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 |
These cationic grades are representative candidates for paper coating and papermaking trials. Confirm furnish chemistry, charge balance, additives, dosage point and final paper requirements before ordering.
Match Particle Size to the Paper Process
Fine-Particle AP Grades
AP2510 and AP2820 provide inorganic cationic silica for trials requiring 10–30 nm particle ranges.
Larger-Particle APX Grades
The APX series provides 50–120 nm options for comparative coating structure and process evaluation.
Organically Modified Direction
PI2020 provides 20±1% SiO₂ with 20–30 nm particles for formulation-specific compatibility trials.
Specialty Large-Particle Grade
P12X provides a 300–600 nm range for specialty paper, film or anti-blocking evaluations.
Information Needed for Papermaking Evaluation
Provide the paper grade, furnish chemistry, application point and performance targets before selecting a cationic colloidal silica candidate.
- Application stage: specify wet end, surface treatment, coating, ink-receptive layer or specialty use.
- Paper system: provide furnish type, fillers, starch, polymers, retention aids and other charged additives.
- Product parameters: specify particle size, SiO₂ content, modification direction and dosage range.
- Process conditions: provide system pH, conductivity, mixing order, shear conditions and addition point.
- Performance targets: define retention, drainage, formation, coating holdout, printability or surface properties.
- Quality limits: include the inspection method and acceptance criteria used for qualification.
Request Colloidal Silica for a Papermaking Trial
Send the paper grade, application stage, furnish chemistry, process conditions, target properties and required quantity.
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.
Colloidal Silica for Papermaking Questions
Which colloidal silica grades can be evaluated for papermaking?
The listed grades are AP2510, AP2820, APX50-20, APX80-30, APX100-30, PI2020 and P12X.
How do AP and PI grades differ in paper trials?
AP grades are inorganic and contain no organic material, while PI2020 is listed as an organically modified grade.
Which papermaking information is needed before a trial?
Provide the paper grade, furnish and filler chemistry, charged additives, process pH, conductivity, dosage point and target performance.
Are the listed grades suitable for every paper system?
No. Charge balance and compatibility vary with the furnish, additives and process water. Laboratory and machine trials are required.
How should colloidal silica for papermaking 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 Colloidal Silica for Papermaking
Cationic colloidal silica can be evaluated in papermaking and paper-coating systems containing negatively charged surfaces or components. Confirm charge balance under actual process conditions.
Wet-End Retention Trials
Selected grades can be evaluated with compatible retention programs after furnish chemistry and charge demand are measured.
Drainage and Formation Trials
Machine trials can assess drainage, formation and fines retention at the intended dosage and addition point.
Paper Surface Coatings
Suitable for coating formulations requiring positively charged silica and controlled particle-size options.
Ink-Receptive Coatings
Evaluated in compatible coatings targeting liquid uptake, drying, dot control and print definition.
Specialty Paper Surfaces
P12X and other selected grades can be assessed where surface texture or anti-blocking behavior is required.
Custom Papermaking Programs
Supports development using the mill's furnish, process water, polymers, fillers and target paper properties.
