Import Undensified Microsilica (Silica Fume) — Buy in wholesale FOB from Supplier in China
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Undensified Microsilica (Silica Fume)
ACC® Undensified Microsilica is a by-product of the production of ferrosilicon alloys or silicon metal, with SiO2 content ranging from 85% to 98%, bulk density around 300 400kg/m3, and light gray color. They are classified as Grade 85U, Grade 92U, Grade 94U,Grade 96U and Grade 98U. It is collected, and packed from our ferrosilicon or silicon metal factories directly, the automatic and integrated production process guarantees the consistent quality.
Key Specifications: HS Code: 2505.90 | Material: Silica Fume (Undensified), SiO2 85-98% | Form/Type: Undensified Powder, Amorphous Silica | SiO2 Purity: 85% - 98% (grade-dependent) | Particle Size: 0.1 - 0.5 micrometers (typical) | Bulk Density: 300 - 400 kg/m3 | Loss on Ignition (LOI): Up to 4% at 1000C | Application: Concrete additive, refractory castables, high-performance cement, fire protection coatings | Packaging: 25 kg bags, 1 MT big bags, or bulk tanker | Standard: ASTM C1240, EN 13263, GB/T 18736
Supply & Ordering: Minimum Order Quantity: 1 Bags
HS Code: 2505.90 — classified under Ores and Minerals.
| HS Code | 2505.90 |
| Material | Silica Fume (Undensified), SiO2 85-98% |
| Form/Type | Undensified Powder, Amorphous Silica |
| SiO2 Purity | 85% - 98% (grade-dependent) |
| Particle Size | 0.1 - 0.5 micrometers (typical) |
| Bulk Density | 300 - 400 kg/m3 |
| Loss on Ignition (LOI) | Up to 4% at 1000C |
| Application | Concrete additive, refractory castables, high-performance cement, fire protection coatings |
| Packaging | 25 kg bags, 1 MT big bags, or bulk tanker |
| Standard | ASTM C1240, EN 13263, GB/T 18736 |
Undensified Microsilica, also known as Silica Fume, is a high-purity by-product of ferrosilicon and silicon metal production with SiO2 content ranging from 85% to 98%. Its characteristic low bulk density of 300-400 kg/m3 makes it ideal for refractory applications, high-performance concrete, and advanced ceramics. This product is widely traded internationally for industrial use, with major supply origins in China, Norway, and the USA.
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Sourcing Undensified Microsilica (Silica Fume) from China
Undensified Microsilica (Silica Fume) is offered by Xiamen All Carbon Corporation, a Supplier based in China, in wholesale quantities for importers, distributors, and trade buyers. Contact the supplier to request pricing, minimum order quantity, and shipping terms for your destination.
When importing Undensified Microsilica (, confirm trade terms such as FOB or CIF, packaging, and any certification or documentation you need directly with the supplier before placing a bulk order.
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30 suppliersBuy Undensified Microsilica ( in Bulk — Verified Supplier in China
When sourcing Undensified Microsilica (Silica Fume) for your business, securing the right balance of quality and cost is essential. Xiamen All Carbon Corporation, a verified supplier based in China, offers this product with key specifications including Undensified Powder, Amorphous Silica, 85% - 98% (grade-dependent), and 0.1 - 0.5 micrometers (typical). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $11/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.
Undensified Microsilica ( Specifications, Trade Terms & Pricing
Importing Undensified Microsilica ( requires careful attention to shipping logistics, customs compliance, and secure payment terms. Xiamen All Carbon Corporation 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 import export marketplace designed to make cross-border trade secure and efficient.
About Xiamen All Carbon Corporation — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Undensified Microsilica ( 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 online B2B marketplace. Start your sourcing journey today.
Import Undensified Microsilica ( — Shipping, Logistics & Customs
Importing Undensified Microsilica ( 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 Undensified Microsilica (
What is the wholesale price of Undensified Microsilica (Silica Fume)?
The current listed wholesale price for Undensified Microsilica (Silica Fume) from Xiamen All Carbon Corporation is $11/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 Xiamen All Carbon Corporation through EximNext.
What is the Minimum Order Quantity (MOQ) for Undensified Microsilica (?
The supplier, Xiamen All Carbon Corporation, has set a Minimum Order Quantity (MOQ) of 1 Bags for Undensified Microsilica (. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Undensified Microsilica (Silica Fume)?
For international shipping and customs clearance, Undensified Microsilica (Silica Fume) 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 Undensified Microsilica ( from China?
To import Undensified Microsilica ( from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Xiamen All Carbon Corporation. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Is Xiamen All Carbon Corporation a verified supplier?
Yes, Xiamen All Carbon Corporation 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 Undensified Microsilica (Silica Fume)?
The key specifications for Undensified Microsilica (Silica Fume) supplied by Xiamen All Carbon Corporation include Undensified Powder, Amorphous Silica, 85% - 98% (grade-dependent), and 0.1 - 0.5 micrometers (typical). 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 Undensified Microsilica (?
Xiamen All Carbon Corporation offers Undensified Microsilica ( with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Undensified Microsilica ( the most?
Undensified Microsilica ( is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Xiamen All Carbon Corporation through our platform.
What certifications does this Undensified Microsilica ( supplier hold?
Xiamen All Carbon Corporation maintains international quality certifications. These ensure that the Undensified Microsilica ( meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Undensified Microsilica (Silica Fume) on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Xiamen All Carbon Corporation 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 Xiamen All Carbon Corporation.
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