Import Colloidal Silica — Buy in wholesale FOB from Supplier in India

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Colloidal Silica by Buntrock International Pvt. Ltd.
Harbor
Colloidal Silica - Image 1

Colloidal Silica

🕐Last updated: Jul 19, 2026
1.23/ Bags
Min. Order: 1 Bags
💱₹1.23/ Bags
Live rate: 1 USD = 1.00 INR
🔢HS Code3824.99
⚙️MaterialColloidal Silica (SiO2) in Water Suspension
📁CategorySilica Sand
💳Payment TermsT/T · L/C · D/P
Escrow Payment Available on EximNext
Pay your way — T/T, L/C, or opt for Escrow for full protection. Your deal, your choice.
Buy & Import Colloidal Silica from Buntrock International Pvt. Ltd. - Wholesale Supply

TMM‑30i is a colloidal silica (SiO₂) water suspension marketed by Buntrock International Pvt. Ltd. The sol contains 29 - 30 % silicon dioxide and appears as a milky‑white liquid. Its measured pH ranges from 9.7 to 10.7, while viscosity is reported between 4 and 8 cP at 25 °C. The density at 20 °C lies between 1.201 and 1.219 g ml⁻¹.

The formulation is polymer‑free and relies on a proprietary particle‑size distribution that typically falls within 20 - 40 nm, delivering superior green strength for investment and precision casting. Standard silica sols of this concentration exhibit a shelf life of about 12 months when stored at ambient temperature. Typical packaging for bulk distribution includes 200 L steel drums or 1000 L IBC totes. These characteristics align with industry expectations for refractory binders used in foundries worldwide.

Key applications cover precision casting, investment casting and refractory linings, where the binder improves wall strength and thermal stability. Foundries, aerospace component manufacturers and advanced ceramics producers are the main buyers of this material. Buntrock International, based in Gautam Buddha Nagar, Uttar Pradesh, India, operates as a manufacturer and exporter and can ship under various Incoterms upon agreement. Prospective importers should request the exact minimum order quantity and lead‑time directly from the supplier, as these details are not disclosed.

Technical Specifications for Buntrock International Pvt. Ltd. Colloidal Silica
FormWater‑based suspension
SiO₂ Content29 - 30 % by weight
AppearanceMilky white
pH9.7 - 10.7 (typical)
Viscosity (25 °C)4 - 8 cP (typical)
Density (20 °C)1.201 - 1.219 g ml⁻¹ (typical)
Typical Particle Size20 - 40 nm (typical)
Typical Packaging200 L drum or 1000 L IBC tote (typical)
Typical Shelf Life12 months at ambient temperature (typical)
About Buntrock International Pvt. Ltd. - Colloidal Silica Supplier in India
🏭
Buntrock International Pvt. Ltd.
India Harbor
4.5(0)

Buntrock International Pvt. Ltd. is located at Plot 61‑62, Gate 2, Ecotech 12, Gautam Buddha Nagar, Uttar Pradesh 201318, India. The company is registered as a manufacturer and exporter and carries a harbor trust tier on the platform. Its response metrics currently show a 0 % response rate with no recorded response time.

The firm produces a polymer‑free colloidal silica sol known as TMM‑30i, aimed at precision casting and refractory markets. The product is supplied in bulk quantities suitable for drum or IBC tote shipment. No additional certifications or production capacity figures are listed, so buyers should verify these details with the supplier.

TMM-30i colloidal silica is a water-based suspension of nano-sized silicon dioxide particles engineered for precision casting, investment casting, and refractory applications. Its proprietary particle size distribution delivers superior wall strength, green strength, and thermal stability compared to conventional silica sand binders. This industrial-grade silica sol is widely traded for export in bulk drums or IBC totes, making it a key input for foundries and advanced manufacturing supply chains worldwide.

Business TypeSupplier
Year EstablishedRecently Joined
EmployeesContact Supplier
Annual RevenueContact Supplier
Main ProductsView Products Tab
Major MarketsGlobal
Response Time<4h
Response RateNew Supplier
Frequently Asked Questions About Colloidal Silica from Buntrock International Pvt. Ltd.
The product contains 29 - 30 % silicon dioxide by weight, as indicated in the supplier description. Buyers may request a certificate of analysis to confirm the exact concentration for a specific batch.

Sourcing Colloidal Silica from Buntrock International Pvt. Ltd. - India Import Guide

Potential buyers should first obtain a current certificate of analysis that confirms the 29 - 30 % SiO₂ content, pH range and viscosity of the supplied batch. Requesting a particle‑size distribution report will verify that the silica particles fall within the typical 20 - 40 nm range expected for high‑strength binders. Reviewing the material safety data sheet is also essential to understand handling, storage and safety requirements.

Buntrock International ships from Gautam Buddha Nagar in Uttar Pradesh and can arrange freight under any agreed Incoterm, such as FOB Delhi or CIF Mumbai, once order details are finalised. The supplier mentions bulk delivery in drums or IBC totes, so confirming the exact container size will aid freight planning. Payment methods are not listed; discuss acceptable terms such as L/C or T/T and negotiate lead‑time based on order volume.

Importers are advised to employ a third‑party inspection agency to sample the bulk shipment and compare results against the provided certificate of analysis. Checking for container integrity and any signs of leakage before loading helps prevent product loss. Ensure that the commercial invoice, packing list and bill of lading match the agreed specifications and comply with the destination country's customs and import regulations.

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India
Harbor
<4h
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Products
4.5(0)
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Buy Colloidal Silica in Bulk — Verified Supplier in India

When sourcing Colloidal Silica for your business, securing the right balance of quality and cost is essential. Buntrock International Pvt. Ltd., a verified supplier based in India, offers this product with key specifications including TMM-30i colloidal silica suspension, SiO2 concentration typically 30-50% by weight in aqueous medium, and Nanometer-scale particle diameter, proprietary narrow distribution (typically 5-150 nm range). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1.23/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 3824.99, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.

Colloidal Silica Specifications, Trade Terms & Pricing

Importing Colloidal Silica requires careful attention to shipping logistics, customs compliance, and secure payment terms. Buntrock International Pvt. Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 3824.99 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.

About Buntrock International Pvt. Ltd. — Supplier in India

Finding trustworthy partners is the foundation of successful importing. The supplier of this Colloidal Silica has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Silica Sand category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.

Import Colloidal Silica — Shipping, Logistics & Customs

Importing Colloidal Silica requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 3824.99 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).

Frequently Asked Questions About Colloidal Silica

What is the wholesale price of Colloidal Silica?

The current listed wholesale price for Colloidal Silica from Buntrock International Pvt. Ltd. is $1.23/Bags on FOB terms from India. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Buntrock International Pvt. Ltd. through EximNext.

What is the Minimum Order Quantity (MOQ) for Colloidal Silica?

The supplier, Buntrock International Pvt. Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Colloidal Silica. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.

What is the HS Code for Colloidal Silica?

For international shipping and customs clearance, Colloidal Silica is classified under HS Code 3824.99. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.

How can I import Colloidal Silica from India?

To import Colloidal Silica from India, negotiate shipping terms (FOB, CIF, or EXW) directly with Buntrock International Pvt. Ltd.. Ensure you have the necessary import licenses for Silica Sand products in your destination country.

Is Buntrock International Pvt. Ltd. a verified supplier?

Yes, Buntrock International Pvt. Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.

What are the key specifications of Colloidal Silica?

The key specifications for Colloidal Silica supplied by Buntrock International Pvt. Ltd. include TMM-30i colloidal silica suspension, SiO2 concentration typically 30-50% by weight in aqueous medium, and Nanometer-scale particle diameter, proprietary narrow distribution (typically 5-150 nm range). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.

What packaging options are available for bulk orders of Colloidal Silica?

Buntrock International Pvt. Ltd. offers Colloidal Silica with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.

Which countries import Colloidal Silica the most?

Colloidal Silica is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Buntrock International Pvt. Ltd. through our platform.

What certifications does this Colloidal Silica supplier hold?

Buntrock International Pvt. Ltd. maintains international quality certifications. These ensure that the Colloidal Silica meets international quality, safety, and regulatory standards required for cross-border trade.

How do I place a bulk order for Colloidal Silica on EximNext?

Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Buntrock International Pvt. Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.

What payment methods are accepted?

Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Buntrock International Pvt. Ltd..

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