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Microsilica (silica fume) is a byproduct from silicon metal or ferrosilicon industries,is an amorphous silicon dioxide â?? SiO2 which is generated as a gas in submerged electrical arc furnaces during the reduction of very pure quartz. As the molten metal is produced, a silica-based gas is emitted. This gaseous fume, as it rises, cools rapidly and forms extremely minute,Amorphous, spherical particles. The microsilica is collected in a bag house, a system for filtering the hot air and gases vented from the furnace. This gas vapor is condensed in bag house collectors as very fine powder of spherical particles that average 0.1 to 0.3 microns in diameter with a surface area of 17 to 30 m2/g. Microsilica can be used in concrete and refractory materials. Microsilica ,when used in concrete, it can improve concreteâ??s properties such as compressive strength, bond strength and abrasion resistance, reduces permeability,and therefore helps in protecting reinforcing steel from corrosion. At the same time, Microslica can still be used in the procustion of refractory and porcelain, to raise intensity and durability, it also can be used in paint, coating resin rubber and other high molecular as a filler material to improve the material overall performance.
| HS Code | 2505.90 |
| Material | Silica Fume (Microsilica) Amorphous SiO2 |
| Grade/Type | Undensified (Dry) / Densified / Pelletized |
| Purity/Composition | SiO2 content 85% - 98%, Al2O3 < 1.5%, Fe2O3 < 1.5%, CaO < 1.0% |
| Size/Dimensions | Particle size 0.1 - 1.0 microns; specific surface area 15,000 - 30,000 m2/kg (BET) |
| Standard | ASTM C1240, EN 13263, GB/T 18736 (China) |
| Application | High-performance concrete, refractory castables, shotcrete, mortar, ceramic composites, insulation materials |
| Packaging | 25 kg multi-wall paper bags, 500 kg / 1,000 kg jumbo bags, or bulk loose shipment in silo trucks / containers |
| Origin | China, Norway, USA, Russia, Brazil (major producers of silicon/ferrosilicon alloys) |
Silica fume (microsilica) is a high-performance pozzolanic additive containing 85-98% amorphous SiO2, widely used in high-strength concrete, mortars, and refractory applications to improve durability and compressive strength. This ultrafine powder with particle sizes of 0.1-0.5 microns is sourced as a byproduct from silicon and ferrosilicon production. It is traded in bulk bags or loose form, with demand driven by infrastructure projects, cement manufacturers, and foundries globally. Export-grade microsilica typically meets ASTM C1240 or EN 13263 standards.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Microsilica (Silca Fume) is offered by Algs Group Llc, a Supplier based in Kazakhstan, 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 Microsilica (Silca 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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When sourcing Microsilica (Silca Fume) for your business, securing the right balance of quality and cost is essential. Algs Group Llc, a verified supplier based in Kazakhstan, offers this product with key specifications including Undensified (Dry) / Densified / Pelletized, SiO2 content 85% - 98%, Al2O3 < 1.5%, Fe2O3 < 1.5%, CaO < 1.0%, and Particle size 0.1 - 1.0 microns; specific surface area 15,000 - 30,000 m2/kg (BET). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $180/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.
Importing Microsilica (Silca Fume) requires careful attention to shipping logistics, customs compliance, and secure payment terms. Algs Group Llc 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Microsilica (Silca 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 Silica Sand category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Importing Microsilica (Silca 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 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).
The current listed wholesale price for Microsilica (Silca Fume) from Algs Group Llc is $180/Bags on FOB terms from Kazakhstan. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Algs Group Llc through EximNext.
The supplier, Algs Group Llc, has set a Minimum Order Quantity (MOQ) of 1 Bags for Microsilica (Silca Fume). For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Microsilica (Silca 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.
To import Microsilica (Silca Fume) from Kazakhstan, negotiate shipping terms (FOB, CIF, or EXW) directly with Algs Group Llc. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Yes, Algs Group Llc 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 Microsilica (Silca Fume) supplied by Algs Group Llc include Undensified (Dry) / Densified / Pelletized, SiO2 content 85% - 98%, Al2O3 < 1.5%, Fe2O3 < 1.5%, CaO < 1.0%, and Particle size 0.1 - 1.0 microns; specific surface area 15,000 - 30,000 m2/kg (BET). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Algs Group Llc offers Microsilica (Silca Fume) with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Microsilica (Silca Fume) is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Algs Group Llc through our platform.
Algs Group Llc maintains international quality certifications. These ensure that the Microsilica (Silca Fume) 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. Algs Group Llc 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 Algs Group Llc.
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