Import Micro Silica Fume — Buy in wholesale FOB from Supplier in China
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Micro Silica Fume
Product Description: Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips.The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active. Features Characteristics: 1).Appearance is as grey&white off. 2).High electrical resistivity 3).Low Permeability 4).Superior resistance to chemical attack from chlorides,acids and sulfates 5).Low chloride ion diffusion 6).High reactive Pozzolan 7).High temperature strength 8).Improved stability ingeothermal environment Application area: 1) Concrete or Shotcrete • Increase its density and strength, improve the performance on its durability, impact resistance, corrosion resistance, anti-permeability and frost resistance etc 2) Refractory material & Ceramics material • Greatly improve its density, strength and high temperature performance. 3) Cementitous Repair Products (Mortars & Grouts) • Low permeability, increase resistance from chlorides, acids, nitrates and sulfate etc 4) Oil Well Grouting • Increase durability and compressive strength, decrease permeability, better control of gas leakage 5) Concrete Tile, roofing & wallboard,panels • Lightweight and improve the strength 6) Polymers & rubber product 7) other application, such as waterglass industry, thermal insulation material etc.
| HS Code | 3824.40 |
| Material | Amorphous Silicon Dioxide (SiO2) |
| Grade/Type | Densified, Undensified, or Pelletized |
| Purity/Composition | SiO2: 85% - 98% (amorphous) |
| Particle Size | 0.1 - 0.5 microns (median ~0.15 µm) |
| Standard | ASTM C1240 / EN 13263 |
| Application | High-performance concrete, shotcrete, grout, mortar, refractory castables |
| Packaging | 25kg bags, 500kg jumbo bags, 1MT super sacks |
| Specific Surface Area | 15,000 - 30,000 m²/kg (BET) |
| Loss on Ignition | ≤ 6% at 1000°C |
Micro silica fume is a high-reactivity pozzolanic material composed of ultra-fine amorphous silicon dioxide particles, generated as a byproduct of silicon and ferrosilicon alloy production. Widely specified under ASTM C1240 and EN 13263 standards, it is a key additive for high-performance concrete, shotcrete, grout, and refractory applications, significantly improving compressive strength, durability, and chemical resistance. Available in densified, undensified, and pelletized forms, typically packaged in 25kg bags, jumbo bags, or 1MT supersacks for bulk export shipment. A critical input material for construction projects requiring superior durability, including marine structures, bridges, and industrial floors.
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Sourcing Micro Silica Fume from China
Micro Silica Fume is offered by Quanzhou Winitoor Industry Co., Ltd., 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 Micro Silica Fume, 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 Micro Silica Fume in Bulk — Verified Supplier in China
When sourcing Micro Silica Fume 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 Densified, Undensified, or Pelletized, SiO2: 85% - 98% (amorphous), and 0.1 - 0.5 microns (median ~0.15 µm). 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 3824.40, making it a staple in the Construction Materials sector with strong demand from importing countries worldwide.
Micro Silica Fume Specifications, Trade Terms & Pricing
Importing Micro Silica Fume 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 3824.40 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 Quanzhou Winitoor Industry Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Micro Silica Fume 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 Construction Materials category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Micro Silica Fume — Shipping, Logistics & Customs
Importing Micro Silica Fume 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 3824.40 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 Micro Silica Fume
What is the wholesale price of Micro Silica Fume?
The current listed wholesale price for Micro Silica Fume 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 Micro Silica Fume?
The supplier, Quanzhou Winitoor Industry Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Micro Silica Fume. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Micro Silica Fume?
For international shipping and customs clearance, Micro Silica Fume is classified under HS Code 3824.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Micro Silica Fume from China?
To import Micro Silica Fume from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Quanzhou Winitoor Industry Co., Ltd.. Ensure you have the necessary import licenses for Construction Materials 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 Micro Silica Fume?
The key specifications for Micro Silica Fume supplied by Quanzhou Winitoor Industry Co., Ltd. include Densified, Undensified, or Pelletized, SiO2: 85% - 98% (amorphous), and 0.1 - 0.5 microns (median ~0.15 µm). 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 Micro Silica Fume?
Quanzhou Winitoor Industry Co., Ltd. offers Micro Silica Fume with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Micro Silica Fume the most?
Micro Silica Fume 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 Micro Silica Fume supplier hold?
Quanzhou Winitoor Industry Co., Ltd. maintains international quality certifications. These ensure that the Micro Silica Fume meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Micro Silica Fume 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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