Import Colloidal Silica Sol — Buy in wholesale FOB from Supplier in China
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Colloidal Silica Sol
Guangdong Well‑t Nanotech Co., Ltd. supplies the HS‑515 colloidal silica sol, a water‑based suspension of nanometer‑sized SiO₂ particles. The formulation contains 14‑16 % silica by weight, a specific gravity of 1.08‑1.09, and 0.5 % sodium oxide (Na₂O) as stabiliser. The product is SGS certified and is produced in a facility with an annual capacity of 200 000 tonnes. It is shipped in bulk containers suitable for industrial use.
In the chemical industry, colloidal silica of this grade is commonly employed as a binder in precision casting, as an abrasive aid in chemical‑mechanical polishing, and as a functional additive in high‑performance coatings. Typical particle sizes for a 14‑16 % silica sol range from 10 to 50 nm, giving a stable colloidal system at near‑neutral pH. The viscosity of such sols is usually between 10 and 20 cP at 25 °C, allowing easy mixing with other formulation components.
Foundries, semiconductor wafer manufacturers and coating producers are the main buyers of this material. The supplier offers bulk delivery, but exact minimum order quantities, incoterms and payment terms must be confirmed directly with the company. Prospective importers should request a recent certificate of analysis and agree on packaging specifications before finalising the contract.
| Silica content (SiO₂) | 14-16 % (weight) |
| Sodium oxide (Na₂O) | 0.5 % (weight) |
| Specific gravity | 1.08-1.09 (typical range) |
| Particle size | typical 10-50 nm |
| pH | typical 6.5-7.5 |
| Viscosity at 25 °C | typical 10-20 cP |
| Packaging | typical 25 kg IBC drums |
| Shelf life (sealed) | typical 12 months |
| Storage temperature | typical 15‑30 °C |
| Certification | SGS certified |
Guangdong Well‑t Nanotech Co., Ltd. is located in Dongkeng Industrial Zone, Dongkeng Town, Dongguan, Guangdong Province, China, postal code 523451. The company is classified in the harbour trust tier on the platform, although its response rate and average response time are currently not recorded. Since 1998 the firm has built a production line capable of 200 000 tonnes of colloidal silica products per year. Its quality system is SGS certified, providing a documented assurance of consistent product performance.
The supplier advertises the HS‑515 silica sol and indicates that additional formulations can be developed on customer request. No specific minimum order quantity or payment terms are disclosed in the listing, so buyers should negotiate these details directly. Communication is handled through the trade platform’s messaging system, and the company’s profile shows no recent response activity. Prospective partners are encouraged to request a recent certificate of analysis and any relevant safety data sheets before proceeding.
Colloidal Silica Sol HS-515 is a water-based suspension of nanometer-sized SiO2 particles with 14-16% silica content, serving critical applications in precision casting, chemical mechanical polishing, and high-performance coatings. This industrial-grade product is SGS certified for consistent quality, sourced from a manufacturer with 200,000 MT annual capacity. Suitable for import buyers seeking reliable supply of functional silica sol for advanced manufacturing processes.
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Sourcing Colloidal Silica Sol from Guangdong Well-t Nanotech Co., Ltd. - China Import Guide
Before placing an order, importers should obtain a current Certificate of Analysis that confirms the silica content, specific gravity and Na₂O level. Request a sample for laboratory testing to verify particle size distribution and viscosity against the stated ranges. Confirm that the supplier’s SGS certification is still valid and that the production facility in Dongguan can meet the required volume. These steps reduce the risk of receiving off‑spec material.
The bulk product is normally dispatched from ports in Guangdong province such as Shenzhen or Guangzhou, but the exact loading point should be agreed with the seller. Typical incoterms are FOB or CIF, and lead times depend on production scheduling and container availability; buyers need to ask the supplier for an estimated shipping schedule. Clarify the preferred payment method, whether by T/T, L/C or alternative, to align with company policy.
Upon arrival, a third‑party inspection is advisable to check container integrity and to perform spot tests for silica concentration, pH and viscosity. Verify that the storage temperature during transit remained within the typical 15‑30 °C range to prevent premature gelation. Keep all test reports, the SGS certificate and the bill of lading as part of the import documentation for customs and future quality audits.
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30 suppliersBuy Colloidal Silica Sol in Bulk — Verified Supplier in China
When sourcing Colloidal Silica Sol for your business, securing the right balance of quality and cost is essential. Guangdong Well-t Nanotech Co., Ltd., a verified supplier based in China, offers this product with key specifications including HS-515 Colloidal Silica Sol, SiO2 14-16%, pH range typically 3-10 depending on formulation, and Milky white liquid suspension, specific gravity ~1.1-1.3 g/cm3. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $8001,200./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. 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 Sol Specifications, Trade Terms & Pricing
Importing Colloidal Silica Sol requires careful attention to shipping logistics, customs compliance, and secure payment terms. Guangdong Well-t Nanotech Co., 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 online B2B marketplace designed to make cross-border trade secure and efficient.
About Guangdong Well-t Nanotech Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Colloidal Silica Sol 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 B2B marketplace. Start your sourcing journey today.
Import Colloidal Silica Sol — Shipping, Logistics & Customs
Importing Colloidal Silica Sol 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 Sol
What is the wholesale price of Colloidal Silica Sol?
The current listed wholesale price for Colloidal Silica Sol from Guangdong Well-t Nanotech Co., Ltd. is $8001,200./Unit on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Guangdong Well-t Nanotech Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Colloidal Silica Sol?
The supplier, Guangdong Well-t Nanotech Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Unit for Colloidal Silica Sol. 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 Sol?
For international shipping and customs clearance, Colloidal Silica Sol 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 Sol from China?
To import Colloidal Silica Sol from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Guangdong Well-t Nanotech Co., Ltd.. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Is Guangdong Well-t Nanotech Co., Ltd. a verified supplier?
Yes, Guangdong Well-t Nanotech Co., 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 Sol?
The key specifications for Colloidal Silica Sol supplied by Guangdong Well-t Nanotech Co., Ltd. include HS-515 Colloidal Silica Sol, SiO2 14-16%, pH range typically 3-10 depending on formulation, and Milky white liquid suspension, specific gravity ~1.1-1.3 g/cm3. 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 Sol?
Guangdong Well-t Nanotech Co., Ltd. offers Colloidal Silica Sol 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 Sol the most?
Colloidal Silica Sol is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Guangdong Well-t Nanotech Co., Ltd. through our platform.
What certifications does this Colloidal Silica Sol supplier hold?
Guangdong Well-t Nanotech Co., Ltd. maintains international quality certifications. These ensure that the Colloidal Silica Sol meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Colloidal Silica Sol on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Guangdong Well-t Nanotech Co., 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 Guangdong Well-t Nanotech Co., Ltd..
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