Import Silica Fume For Concrete/Refractory — Buy in wholesale FOB from Supplier in China
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Silica Fume For Concrete/refractory
Silica fume supplied by Quanzhou Winitoor Industry Co., Ltd. is an amorphous silicon dioxide powder with a SiO2 content ranging from 92 % to 98 %. The material is offered in both densified and undensified forms and conforms to ASTM C1240 specifications for pozzolanic additives. Each batch is packaged for export in 25 kg bags or 1 metric‑ton bulk bags, facilitating handling for large‑scale projects. The supplier states a minimum order quantity of 20 metric tons, reflecting its capacity for bulk shipments.
In the concrete industry, typical bulk density for densified silica fume lies between 0.4 and 0.6 g/cm³, while undensified product is lighter and requires moisture‑controlled storage. Standard moisture content is below 0.5 % to preserve pozzolanic activity, and particle size is generally under 0.1 µm, delivering high reactivity. The product is SGS‑certified, providing independent verification of compliance with the cited standards. Such specifications make the fume suitable for high‑strength concrete, precast elements, and refractory linings that demand excellent chemical resistance.
Primary buyers include contractors of high‑rise buildings, marine infrastructure developers, and manufacturers of industrial furnace linings. Trade terms can be negotiated as FOB or CIF, and the supplier’s harbour‑tier trust rating indicates a verified import‑oriented operation. Prospective importers should request the latest test report, confirm the exact SiO2 purity range for the batch, and verify packaging integrity before shipment. Payment methods and lead‑time details are not disclosed in the listing and should be clarified with the supplier during quotation.
| Material | Amorphous Silicon Dioxide (SiO2) |
| SiO2 Purity | 92‑98 % |
| Form | Densified and Undensified |
| Standard | ASTM C1240 (supplementary cementitious material) |
| Certification | SGS certified |
| Packaging | 25 kg bags or 1 MT bulk bags |
| Minimum Order Quantity | 20 metric tons |
| Production Capacity | 3 000 tons per month |
| Typical Bulk Density | 0.4‑0.6 g/cm³ (densified) - typical |
| Typical Moisture Content | <0.5 % - typical |
Quanzhou Winitoor Industry Co., Ltd. is located in Fujian province, China, at Rm#801, No. 3 Building, Jialin Square, Ruixiang Garden, Citong Road, Quanzhou 362000. The company is classified as an imported supplier and carries a harbour‑tier trust rating, indicating that its trade credentials have been verified by the platform. Response metrics show a 0 % response rate and no recorded average response time, which suggests that buyers should establish communication expectations early in the negotiation process.
The listing confirms that the company produces silica fume in both densified and undensified forms, conforms to ASTM C1240, and holds SGS certification. Packaging options include 25 kg bags and 1 MT bulk bags, and the supplier can supply up to 3 000 tons per month. The listing does not disclose unit pricing, specific lead‑time estimates, or preferred payment methods, so these details must be obtained directly from the supplier during the quotation phase.
Silica Fume is a high-performance supplementary cementitious material widely used in high-strength concrete and refractory applications. With SiO2 purity of 92-98%, it significantly improves compressive strength, durability, and chemical resistance of concrete mixes. This product is available in both densified and undensified forms, conforming to ASTM C1240 standards, and is typically packaged in 25kg bags or 1MT big bags for international trade. It is ideal for marine structures, high-rise buildings, and industrial furnace linings requiring superior performance under extreme conditions.
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Sourcing Silica Fume For Concrete/refractory from Quanzhou Winitoor Industry Co., Ltd. - China Import Guide
Before placing an order, verify the SiO2 purity range, SGS certification, and that the product conforms to ASTM C1240. Request the most recent test report and packaging inspection photos to ensure the material matches the specifications listed. Confirm the supplier’s harbour‑tier trust status and review any third‑party verification documents they can provide.
Discuss logistics early: ask whether the shipment will be on FOB or CIF terms, the expected lead‑time for the 20 ton minimum order, and the preferred payment method. Clarify whether the supplier can arrange container loading for 1 MT bulk bags or if smaller 25 kg bags will be consolidated. Align incoterm choices with your own freight forwarder arrangements to avoid unexpected costs.
Plan for quality control by arranging pre‑shipment inspection based on the SGS certificate and the batch test report. Specify inspection points such as bulk density, moisture content, and particle size distribution. Request a copy of the certificate of origin and any relevant customs documentation to smooth the clearance process at the destination port.
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30 suppliersBuy Silica Fume For Concrete/ in Bulk — Verified Supplier in China
When sourcing Silica Fume For Concrete/Refractory for your business, securing the right balance of quality and cost is essential. Quanzhou Winitoor Industry Co., Ltd., a verified supplier based in China, offers this product with key specifications including ASTM C1240 / EN 13263 Grade, Densified or Undensified, SiO2 85-98%, Al2O3 <2%, Fe2O3 <1%, Loss on Ignition <4%, and 0.1 - 0.3 Microns (Primary Particle); 150-300 Microns (Densified Agglomerates). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $120140/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2505.90, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.
Silica Fume For Concrete/ Specifications, Trade Terms & Pricing
Importing Silica Fume For Concrete/ requires careful attention to shipping logistics, customs compliance, and secure payment terms. Quanzhou Winitoor Industry 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 2505.90 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 Quanzhou Winitoor Industry Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Silica Fume For Concrete/ 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 Silica Fume For Concrete/ — Shipping, Logistics & Customs
Importing Silica Fume For Concrete/ 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 2505.90 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 Silica Fume For Concrete/
What is the wholesale price of Silica Fume For Concrete/Refractory?
The current listed wholesale price for Silica Fume For Concrete/Refractory from Quanzhou Winitoor Industry Co., Ltd. is $120140/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 Quanzhou Winitoor Industry Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Silica Fume For Concrete/?
The supplier, Quanzhou Winitoor Industry Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Silica Fume For Concrete/. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Silica Fume For Concrete/Refractory?
For international shipping and customs clearance, Silica Fume For Concrete/Refractory is classified under HS Code 2505.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Silica Fume For Concrete/ from China?
To import Silica Fume For Concrete/ from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Quanzhou Winitoor Industry Co., Ltd.. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Is Quanzhou Winitoor Industry Co., Ltd. a verified supplier?
Yes, Quanzhou Winitoor Industry 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 Silica Fume For Concrete/Refractory?
The key specifications for Silica Fume For Concrete/Refractory supplied by Quanzhou Winitoor Industry Co., Ltd. include ASTM C1240 / EN 13263 Grade, Densified or Undensified, SiO2 85-98%, Al2O3 <2%, Fe2O3 <1%, Loss on Ignition <4%, and 0.1 - 0.3 Microns (Primary Particle); 150-300 Microns (Densified Agglomerates). 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 Silica Fume For Concrete/?
Quanzhou Winitoor Industry Co., Ltd. offers Silica Fume For Concrete/ with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Silica Fume For Concrete/ the most?
Silica Fume For Concrete/ is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Quanzhou Winitoor Industry Co., Ltd. through our platform.
What certifications does this Silica Fume For Concrete/ supplier hold?
Quanzhou Winitoor Industry Co., Ltd. maintains international quality certifications. These ensure that the Silica Fume For Concrete/ meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Silica Fume For Concrete/Refractory on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Quanzhou Winitoor Industry 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 Quanzhou Winitoor Industry Co., Ltd..
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