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The product is a colloidal silica sol formulated for quick‑drying precision casting. It contains silicon dioxide at 28‑30 % by weight, is sodium stabilised, and exhibits a viscosity of 10 mPa·s. The pH of the sol lies between 9.0 and 10.5 and its specific gravity ranges from 1.19 to 1.21. Particle size is in the nano‑scale, providing fine detail in mould surfaces.
In foundry practice, colloidal silica with this SiO2 level is considered a high‑performance binder for investment moulds. Typical commercial silica sols present particle diameters of 10‑50 nm and are stored at 5‑25 °C to maintain stability. The sodium‑based stabiliser helps prevent premature gelation, a common requirement for alloys with rapid cooling rates. Such specifications align with standard guidelines for aerospace and automotive casting.
The sol is employed in the production of ferrous and non‑ferrous components for automotive, aerospace and heavy‑machinery sectors where dimensional accuracy is critical. Buyers usually request bulk deliveries in 25 kg drums or larger intermediate bulk containers, with MOQ determined on a case‑by‑case basis. Hubei Jinwei Group offers flexible incoterms and payment methods, but exact terms must be confirmed directly with the supplier. Trade benefits include the ability to adjust order volumes to match production schedules.
| Material | Colloidal Silica (sodium stabilised) |
| SiO2 Content | 28‑30 % (by weight) |
| Viscosity | 10 mPa·s |
| pH Range | 9.0‑10.5 |
| Specific Gravity | 1.19‑1.21 |
| Particle Size | nano‑scale (typical 10‑50 nm) |
| Typical Storage Temperature | 5‑25 °C (typical) |
| Standard Packaging | 25 kg drum (standard) |
| Typical Shelf Life | 12 months (typical) |
| Typical Use | Investment casting binders (standard) |
Hubei Jinwei Group is located in Wuhan, Hubei Province, China, at Room 608 Building 6 No. 3 Guanggu Road. The company is listed with a harbour verification tier, indicating that its business credentials have been cross‑checked by the platform’s trust programme. The profile shows a response rate of 0 % and an average response time of zero hours, suggesting that the supplier has not yet recorded any reply statistics.
The firm specialises in supplying foundry chemicals, notably silica sols for precision casting applications. Its catalogue highlights the ability to provide the product in bulk quantities suitable for automotive and aerospace manufacturers. No additional corporate history, employee count or client list is disclosed in the available profile.
Silica sol is a high-performance colloidal binder widely used in quick drying precision casting and investment casting processes for ferrous and non-ferrous metals. With SiO2 content of 28-30% and low viscosity, it ensures superior surface finish and dimensional accuracy of cast components. EximNext supplies this critical foundry chemical globally, serving automotive, aerospace, and industrial machinery manufacturers seeking reliable refractory mold materials for high-volume production runs.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before placing an order, verify that Hubei Jinwei Group’s harbour tier status matches your risk tolerance and request copies of any quality certificates that pertain to the silica sol, such as ISO 9001 or specific foundry‑chemical standards. Ask for a recent material safety data sheet to confirm the listed SiO2 content, pH and viscosity. Confirm the batch number format and whether the supplier can provide a sample for trial casting.
Discuss the intended incoterm with the supplier; common choices for bulk chemicals include FOB Wuhan or CIF Shanghai, but the final term should reflect your preferred point of delivery. Inquire about the typical production lead time, which for silica sol is often two to four weeks after order confirmation, and whether expedited batches are possible. Payment methods such as T/T in advance, L/C at sight or open account should be negotiated in line with your company’s credit policy.
Arrange for an independent third‑party inspection before shipment, focusing on viscosity, pH and specific gravity measurements to ensure conformity with the quoted specifications. Request a certificate of analysis accompanying each container, detailing the actual SiO2 percentage and particle size distribution. Retain the accompanying packing list, bill of lading and customs documentation to streamline clearance and traceability upon arrival.
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When sourcing Silica Sol For Quick Drying Precision Casting for your business, securing the right balance of quality and cost is essential. Hubei Jinwei Group, a verified supplier based in China, offers this product with key specifications including Industrial Grade Colloidal Silica, Quick Drying Type, SiO2 28-30%, Na2O <1%, pH 9.0-10.5, Viscosity <15 mPa·s, and 8-20 nm (narrow distribution for ceramic shell strength). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $600/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 Metal Castings & Forgings sector with strong demand from importing countries worldwide.
Importing Silica Sol For Quick Dryi requires careful attention to shipping logistics, customs compliance, and secure payment terms. Hubei Jinwei Group 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Silica Sol For Quick Dryi 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 Metal Castings & Forgings category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Importing Silica Sol For Quick Dryi 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).
The current listed wholesale price for Silica Sol For Quick Drying Precision Casting from Hubei Jinwei Group is $600/Bags 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 Hubei Jinwei Group through EximNext.
The supplier, Hubei Jinwei Group, has set a Minimum Order Quantity (MOQ) of 1 Bags for Silica Sol For Quick Dryi. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Silica Sol For Quick Drying Precision Casting is classified under HS Code 3824.99. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Silica Sol For Quick Dryi from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Hubei Jinwei Group. Ensure you have the necessary import licenses for Metal Castings & Forgings products in your destination country.
Yes, Hubei Jinwei Group 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.
The key specifications for Silica Sol For Quick Drying Precision Casting supplied by Hubei Jinwei Group include Industrial Grade Colloidal Silica, Quick Drying Type, SiO2 28-30%, Na2O <1%, pH 9.0-10.5, Viscosity <15 mPa·s, and 8-20 nm (narrow distribution for ceramic shell strength). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Hubei Jinwei Group offers Silica Sol For Quick Dryi with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Silica Sol For Quick Dryi is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Hubei Jinwei Group through our platform.
Hubei Jinwei Group maintains international quality certifications. These ensure that the Silica Sol For Quick Dryi meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Hubei Jinwei Group will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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 Hubei Jinwei Group.
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