Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of paper coating silica sol in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy durable paper coating silica sol for sale here from our factory.
Paper Coating Silica Sol Grade Comparison
| Model | Coating Direction | Particle Size | SiO₂ Content | pH | Shelf Life |
|---|---|---|---|---|---|
| DM30 | Inkjet paper | Confirm before order | 30±1% | 9.5–10.5 | ≥12 months |
| AP2510 | Cationic fine particle | 10–20 nm | 25±1% | 3–6 | ≥6 months |
| AP2820 | Cationic fine particle | 20–30 nm | 28±1% | 3–6 | ≥6 months |
| APX50-20 | Cationic larger particle | 50–60 nm | 20±1% | 3–6 | ≥6 months |
| APX80-30 | Cationic larger particle | 80–90 nm | 30±1% | 3–6 | ≥6 months |
| APX100-30 | Cationic larger particle | 100–120 nm | 30±1% | 3–6 | ≥6 months |
| PI2020 | Organic cationic | 20–30 nm | 20±1% | 3–6 | ≥6 months |
| P12X | Specialty large particle | 300–600 nm | 12–13% | 3–6 | ≥6 months |
The models represent different paper-coating development directions. Confirm binder compatibility, coating pH, rheology, coating weight, drying conditions and target print performance in formulation trials.
Match the Silica Sol to the Coating Architecture
Paper coating performance depends on more than silica concentration. Surface charge, particle size, binder demand and pore structure should be evaluated with the actual substrate and ink system.
Inkjet Paper Direction
DM30 provides 30±1% SiO₂, low published viscosity and alkaline pH for compatible ink-receptive coating trials.
Fine Cationic AP Grades
AP2510 and AP2820 can be evaluated where fine cationic silica and acidic formulation conditions are required.
Larger Cationic APX Grades
APX grades provide larger particles for comparative coating structure, absorption and surface-property development.
PI2020 and P12X
PI2020 offers organic cationic modification, while P12X provides a 300–600 nm range for specialty surface trials.
Information Needed for Paper Coating Evaluation
- Paper substrate: provide paper type, basis weight, porosity, sizing treatment and existing surface preparation.
- Coating formula: identify pigments, binders, crosslinkers, dispersants, surfactants and other charged additives.
- Application method: specify blade, rod, curtain, spray, size press or laboratory drawdown and target coating weight.
- Process conditions: provide formulation pH, solids, viscosity, mixing order, drying temperature and calendering conditions.
- Performance targets: define absorption, drying speed, dot control, color density, gloss, adhesion and water resistance.
- Trial requirements: include sample quantity, test method, acceptance criteria, annual demand and destination country.
Validate Coating Stability and Print Performance
Dispersion Compatibility
Check pH drift, viscosity, flocculation, settling and gel formation after silica sol is added to the complete coating.
Coating Application
Evaluate runnability, leveling, holdout, penetration and wet-layer uniformity at the target coating weight.
Drying and Finishing
Confirm drying response, surface strength, dusting, gloss and behavior under the intended calendering conditions.
Printing Test
Measure ink uptake, drying, optical density, color gamut, dot spread and water resistance with the target ink set.
Request a Paper Coating Silica Sol Grade
Send the substrate, coating formulation, application method, coating weight, drying conditions, ink system and target properties.
Request a Coating GradeMaintain Dispersion Stability
Packaging Options
Available polyethylene packaging sizes are 25 kg, 250 kg and 1000 kg.
Storage Temperature
Store at 0–40°C and prevent freezing. Temperatures below 0°C can cause irreversible gelation.
Direct Sunlight
Avoid prolonged direct sunlight during storage and transportation.
Container Closure
Keep containers closed to limit water evaporation and precipitation of solid silica particles.
Paper Coating Silica Sol FAQ
Which silica-sol grade is available for inkjet paper coating?
DM30 is the published inkjet paper grade. It contains 30±1% SiO₂ and has a published pH range of 9.5–10.5.
Which grades provide cationic silica for paper coating trials?
AP, APX, PI2020 and P12X are cationic options covering different particle sizes and modification directions.
Can DM30 and cationic grades be used interchangeably?
No. They have different pH and product characteristics. Selection must be based on binder compatibility, surface charge, coating design and printing tests.
What should be tested in a paper-coating trial?
Test coating viscosity, stability, application behavior, drying, adhesion, absorption, color density, dot spread, gloss and water resistance.
How should paper coating silica sol be stored?
Store it at 0–40°C, prevent freezing and prolonged sunlight, and keep the package closed when not in use.
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Applications of Paper Coating Silica Sol
Silica sol can be evaluated in compatible paper surface and ink-receptive formulations. Grade selection should be validated with the actual substrate, binder, coating process, drying conditions and ink system.
Inkjet Photo Paper
DM30 can be evaluated in receptive coatings targeting rapid ink uptake, image density and controlled dot spread.
Matte Inkjet Paper
Silica-sol grades may be screened for absorption, drying, print definition and surface appearance in matte formulations.
Microporous Receiving Layers
Selected particle sizes can be tested as inorganic components in compatible porous coating architectures.
Specialty Printing Paper
Cationic grades can be evaluated where coating charge, ink fixation and surface performance require coordinated development.
Anti-Blocking Paper Surfaces
P12X and other larger-particle options can be assessed for spacing, texture and anti-blocking behavior.
Custom Coated Paper
Grade trials can be designed around the customer's substrate, binder system, coating weight and acceptance criteria.
