Import Colloidal Silica For Refractory And Foundry — Buy in wholesale FOB from Supplier in China
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Colloidal Silica For Refractory And Foundry
Colloidal Silica For Refractory And Foundry from Keyway Industrial Limited is a stable aqueous dispersion of amorphous silicon dioxide (SiO2) nanoparticles, purpose-built for refractory brick bonding and foundry mold or core coating applications. The product delivers excellent thermal stability and low alkali content, which are critical for maintaining green strength in high-temperature environments such as steel casting or ceramics manufacturing. Its controlled particle size distribution ensures consistent performance in demanding industrial processes.
The silica sol is produced by polymerizing silica nuclei from silicate solutions under alkaline conditions, resulting in nanometer-sized particles with high surface area. These particles carry an anionic surface charge, stabilized by sodium or ammonium, which prevents aggregation and maintains a stable colloid. In specialized grades, aluminate ions are incorporated to extend pH stability from 3.5 to 10.5, broadening its compatibility with acidic or neutral process conditions.
Keyway Industrial Limited supplies this product in 25 kg drums or 1000 kg IBC totes, catering to both small-scale and bulk industrial buyers. The material is widely used in the ceramics, steel, and precision casting industries for applications such as densification of concrete, fine retention in paper manufacturing, and investment casting binding. Buyers should confirm the exact concentration and particle size specifications with the supplier to match their operational requirements.
| Material Composition | Amorphous Silicon Dioxide (SiO2) in Aqueous Dispersion |
| Particle Size Range | 5 nm to 40 nm typical |
| Particle Size Distribution | Controlled, narrow to wide typical |
| pH Stability Range | 8 to 10.5 standard; 3.5 to 10.5 for aluminate-stabilized grades |
| Surface Charge | Anionic, stabilized with sodium or ammonium |
| Thermal Stability | Excellent, suitable for high-temperature applications typical |
| Alkali Content | Low typical |
| Packaging | 25 kg drums or 1000 kg IBC totes |
| Primary Applications | Refractory bonding, foundry mold/core coating, investment casting |
| Manufacturing Process | Polymerized from silicate solutions under alkaline conditions |
Keyway Industrial Limited operates as a China-based supplier specializing in high-performance colloidal silica products for industrial applications. The company’s focus includes refractory and foundry markets, where its silica sols are used for bonding and coating in high-temperature environments. While the supplier’s address details are not fully specified, its harbor trust tier status indicates a verified baseline for international trade operations.
The supplier’s product portfolio emphasizes stability and performance in demanding conditions, with silica sols designed for low alkali content and controlled particle distributions. Buyers are advised to directly confirm the supplier’s production capabilities, quality control processes, and export experience, as well as any additional certifications or test reports relevant to their specific use cases. Response metrics such as rate and time are currently unavailable, so proactive communication is recommended.
This high-performance colloidal silica (silica sol) is a stable aqueous dispersion of amorphous SiO2 particles, designed for refractory brick bonding and foundry mold/core coating applications. It offers excellent thermal stability, low alkali content, and controlled particle size distribution for superior green strength. Supplied in 25kg drums or 1000kg IBC totes, it is widely traded for import/export in the ceramics, steel, and precision casting industries. Please confirm concentration and particle size specifications with the supplier before placing orders.
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Sourcing Colloidal Silica For Refractory And Foundry from Keyway Industrial Limited - China Import Guide
Prior to placing an order, buyers should verify the concentration, particle size distribution, and pH stability range of the colloidal silica to ensure compatibility with their refractory or foundry applications. Request a detailed technical data sheet (TDS) and certificate of analysis (COA) from Keyway Industrial Limited to confirm these specifications, as well as any additional quality metrics such as viscosity or solid content.
Logistics arrangements should account for the packaging format (25 kg drums or 1000 kg IBC totes) and Incoterms, with FOB or CIF being common for international shipments. Clarify lead times, especially for bulk orders, and ensure the supplier can provide necessary export documentation, including material safety data sheets (MSDS) and customs declarations for hazardous materials, if applicable.
For quality assurance, conduct pre-shipment inspections or request samples to test the silica sol’s performance in your specific application. Key parameters to check include particle size, viscosity, and thermal stability under operating conditions. Document all specifications and test results to ensure consistency, and confirm whether Keyway Industrial Limited offers post-sales technical support for troubleshooting or process optimization.
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30 suppliersBuy Colloidal Silica For Refr in Bulk — Verified Supplier in China
When sourcing Colloidal Silica For Refractory And Foundry for your business, securing the right balance of quality and cost is essential. Keyway Industrial Limited, a verified supplier based in China, offers this product with key specifications including Industrial/Technical Grade - Refractory and Foundry Binder, 30-50% SiO2 by weight; amorphous SiO2 in aqueous alkaline solution; Na2O typically 0.4-0.6%, and 5-150 nanometers (nanosilica). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $890/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 For Refr Specifications, Trade Terms & Pricing
Importing Colloidal Silica For Refr requires careful attention to shipping logistics, customs compliance, and secure payment terms. Keyway Industrial Limited 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Keyway Industrial Limited — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Colloidal Silica For Refr 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 global B2B marketplace. Start your sourcing journey today.
Import Colloidal Silica For Refr — Shipping, Logistics & Customs
Importing Colloidal Silica For Refr 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 For Refr
What is the wholesale price of Colloidal Silica For Refractory And Foundry?
The current listed wholesale price for Colloidal Silica For Refractory And Foundry from Keyway Industrial Limited is $890/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 Keyway Industrial Limited through EximNext.
What is the Minimum Order Quantity (MOQ) for Colloidal Silica For Refr?
The supplier, Keyway Industrial Limited, has set a Minimum Order Quantity (MOQ) of 1 Bags for Colloidal Silica For Refr. 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 Refractory And Foundry?
For international shipping and customs clearance, Colloidal Silica For Refractory And Foundry 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 For Refr from China?
To import Colloidal Silica For Refr from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Keyway Industrial Limited. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Is Keyway Industrial Limited a verified supplier?
Yes, Keyway Industrial Limited 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 For Refractory And Foundry?
The key specifications for Colloidal Silica For Refractory And Foundry supplied by Keyway Industrial Limited include Industrial/Technical Grade - Refractory and Foundry Binder, 30-50% SiO2 by weight; amorphous SiO2 in aqueous alkaline solution; Na2O typically 0.4-0.6%, and 5-150 nanometers (nanosilica). 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 For Refr?
Keyway Industrial Limited offers Colloidal Silica For Refr 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 For Refr the most?
Colloidal Silica For Refr is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Keyway Industrial Limited through our platform.
What certifications does this Colloidal Silica For Refr supplier hold?
Keyway Industrial Limited maintains international quality certifications. These ensure that the Colloidal Silica For Refr meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Colloidal Silica For Refractory And Foundry on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Keyway Industrial Limited 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 Keyway Industrial Limited.
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