Shandong Peak-tech New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of colloidal silica for concrete 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 concrete for sale here from our factory.
Colloidal Silica for Concrete Grade Comparison
| Model | Particle Size | SiO₂ Content | Na₂O Content | pH | Shelf Life |
|---|---|---|---|---|---|
| HC4010 | 10–15 nm | 40±1% | ≤0.4% | 9.5–10.5 | ≥12 months |
| HC4020 | 20–30 nm | 40±1% | ≤0.4% | 9.5–10.5 | ≥12 months |
| HC5020 | 20–30 nm | 50±1% | ≤0.4% | 9.5–10.5 | ≥12 months |
The listed HC grades are representative candidates for concrete and cementitious trials, not universal admixtures. Confirm cement chemistry, water demand, setting, workability, strength and surface performance through testing.
Balance Silica Solids, Particle Size and Water
Fine-Particle 40% Candidate
HC4010 combines 40±1% SiO₂ with 10–15 nm particles for cementitious or surface-treatment trials requiring finer nanosilica.
Larger-Particle 40% Candidate
HC4020 provides 40±1% SiO₂ with 20–30 nm particles for comparative dispersion, packing and processing evaluation.
Higher-Solids 50% Candidate
HC5020 provides 50±1% SiO₂ with 20–30 nm particles where limiting added liquid is a formulation target.
Test the Complete Cementitious System
Verify dispersion, slump or flow, air content, setting, shrinkage, strength, curing and surface performance.
Information Needed for Concrete Evaluation
Define the cementitious composition, application method and performance targets before selecting a colloidal silica candidate.
- Cementitious system: identify cement, supplementary materials, aggregates, fillers and water-to-binder ratio.
- Application: specify concrete admixture, surface treatment, repair mortar, overlay, precast or another use.
- Addition requirement: provide the target SiO₂ content, particle size, sodium limit and dosage basis.
- Performance targets: state workability, setting, strength, shrinkage, permeability, abrasion and surface requirements.
- Quality requirements: provide the test method, certificate requirements and acceptance limits.
- Order details: include trial quantity, annual demand, packaging and destination country.
Request Colloidal Silica for a Concrete Trial
Send the cementitious composition, application, dosage basis, curing conditions, target properties and required quantity.
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 for Concrete Questions
Which colloidal silica grades can be evaluated for concrete?
Representative high-solids candidates include HC4010, HC4020 and HC5020. Final selection depends on the cementitious formulation and application.
Why evaluate colloidal silica in concrete formulations?
It provides dispersed nanoscale silica in water and can be assessed for surface or cementitious formulation effects. Actual results depend on dosage, mixing and curing.
Which concrete properties should be tested?
Test dispersion, workability, air content, setting, shrinkage, compressive strength, abrasion, absorption, permeability and appearance.
Can particle size be customized?
Yes. Particle size is identified as customizable and should be confirmed with the target value, tolerance and test method.
How should colloidal silica for concrete use 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 for Concrete
High-solids colloidal silica can be evaluated in compatible concrete and cementitious systems. Qualification must use the actual cement, aggregates, admixtures, application method and curing conditions.
Concrete Surface Treatments
Evaluated in compatible surface-treatment systems after penetration, appearance, abrasion and slip-related effects are verified.
Cementitious Coatings
Suitable grades can be tested in mineral coating formulations requiring controlled aqueous nanosilica.
Repair Mortars and Overlays
Candidates can be qualified for flow, adhesion, setting, shrinkage and strength in compatible repair systems.
Precast Concrete
Evaluated where controlled mixing, molding, curing, surface quality and early handling strength are required.
High-Performance Concrete
Can be assessed in trial mixes after compatibility with superplasticizers, supplementary materials and curing is confirmed.
Custom Cementitious Formulations
Supports trials requiring selected silica solids, particle size, pH, alkali limit and dosage rate.
