Silicas
Colloidal Nano Silica
Stable nano-silica dispersion for concrete densifying, UHPC, coatings and binders.
Minimum order1 MT
HS code2811.22
OriginIndia
Packaging25 kg carboys, 200 kg drums or 1,000 kg IBCs
Overview
Colloidal nano silica is a stable suspension of amorphous silica particles only a few nanometres across. The tiny particles fill the finest pores in concrete and react with free lime, giving a denser, stronger and less permeable matrix.
Beyond concrete, it is used as a binder for investment casting and refractories, and to improve the scratch resistance of coatings.
Typical specifications
| SiO₂ content | 15 – 40% (grade dependent) |
|---|---|
| Particle size | 8 – 20 nm |
| pH | 9 – 10.5 |
| Specific gravity | 1.10 – 1.30 |
| Appearance | Milky to translucent liquid |
Typical values. Exact specifications are confirmed on the certificate of analysis for each lot.
Applications
- Concrete densifier and hardener
- UHPC and high-strength concrete
- Investment casting binder
- Refractory binders
- Coatings and paints
Industries
Questions about Colloidal Nano Silica
How is it dosed in concrete?
Typically 1–3% of cement weight, added with the mixing water. Run trials with your mix design.
What is Colloidal Nano Silica used for?
Colloidal Nano Silica is used for concrete densifier and hardener, uHPC and high-strength concrete, investment casting binder, refractory binders and coatings and paints. Typical buyers are in construction & concrete, refractories & ceramics, uhpc & precast and electronics & coatings.
What are the typical specifications of Colloidal Nano Silica?
SiO₂ content: 15 – 40% (grade dependent); Particle size: 8 – 20 nm; pH: 9 – 10.5; Specific gravity: 1.10 – 1.30; Appearance: Milky to translucent liquid. These are typical values; each lot ships with a certificate of analysis.
What is the minimum order quantity for Colloidal Nano Silica?
The minimum order for Colloidal Nano Silica from M2 Exports India is 1 MT.
How is Colloidal Nano Silica packed for export?
Colloidal Nano Silica is packed in 25 kg carboys, 200 kg drums or 1,000 kg IBCs.
What is the HS code for Colloidal Nano Silica?
Colloidal Nano Silica is usually classified under HS code 2811.22. Confirm the code for your grade with your customs broker.
Who supplies Colloidal Nano Silica in India?
M2 Exports India, based in Chennai, manufactures, supplies and exports Colloidal Nano Silica (origin: India). It ships worldwide by sea and air on FOB, CFR or CIF terms, and by road within India.
How do I get a price or a sample of Colloidal Nano Silica?
Request a quote or a free sample on the Colloidal Nano Silica page at https://www.m2exports.com/products/colloidal-nano-silica, email sales@m2exports.com or message WhatsApp +91 94440 36345. Replies usually come within one working day.
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