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Micro Silica (Silica Fume)
Micro Silica, also known as silica fume, from Maxtech International Trading is an amorphous silicon dioxide (SiO2) by-product sourced from silicon metal or ferrosilicon production. The material features particle sizes between 0.1 and 0.3 microns, with a specific surface area of 20 to 28 m²/g, making it roughly 80 to 100 times finer than cement. It is supplied in densified or undensified form, packed in 25 kg bags or big bags for export, and meets QCS 2014 standards aligned with ASTM C1240.
This product reacts chemically with calcium hydroxide in cement paste to form calcium silicate hydrate gel, which significantly enhances strength and durability. The ultra-fine particles fill voids between cement grains, creating a dense, low-permeability concrete matrix. Typical chemical composition includes SiO2 at 75 to 98%, with minor traces of Al2O3, Fe2O3, MgO, CaO, and Na2O. Bulk density ranges from 320 to 700 kg/m³, and moisture content is controlled within industry-standard limits.
Micro Silica is primarily used in high-strength concrete, marine structures, and refractory applications where enhanced durability and chemical resistance are critical. It is a preferred supplementary cementitious material for infrastructure projects in harsh environments. Buyers typically source it for large-scale construction, precast elements, and specialized applications like tunnels or bridges. Trade terms, including packaging and logistics, are tailored to bulk export requirements from Qatar.
| Primary Material | Amorphous Silicon Dioxide (SiO2) |
| Particle Size | 0.1 - 0.3 microns (average) |
| Specific Surface Area | 20 - 28 m²/g |
| Bulk Density | 320 - 700 kg/m³ |
| SiO2 Content | ≥ 92% (per QCS 2014 / ASTM C1240) |
| Al2O3 Content | 0.2 - 1.0% |
| Fe2O3 Content | 0.3 - 0.9% |
| Moisture Content | ≤ 1.3% (standard for densified silica fume) |
| Fineness | < 1 µm (typical for silica fume) |
| Packaging | 25 kg bags or big bags (typical export packaging) |
Maxtech International Trading is based in Doha, Qatar, operating from Building 43, Street 310, Zone 27 in Umm Ghuwailina. The company is registered under P.O. Box 9044 and focuses on the supply of construction materials, including silica fume, for regional and international markets. Its address and operational location confirm its presence in a key logistics hub for Middle Eastern trade.
The supplier’s profile indicates a Harbor trust tier, reflecting its established status in the marketplace. While the response rate and average response hours are currently not available, the company’s physical presence and compliance with local standards (QCS 2014) signal a commitment to sourcing and distributing materials that meet recognized technical specifications. Buyers are advised to confirm response times and verification details directly with the supplier.
Silica fume, also known as microsilica, is an amorphous silicon dioxide SiO2 by-product of silicon metal or ferrosilicon production. With particle sizes of 0.1-0.5 microns, it serves as a high-performance pozzolanic additive that significantly enhances concrete strength, durability, and chemical resistance. Widely used in high-strength concrete, marine structures, and refractory applications, silica fume is traded globally in densified or undensified form, typically packed in 25kg bags or big bags for export. It is an essential supplementary cementitious material for infrastructure and construction projects worldwide.
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Sourcing Micro Silica (Silica Fume) from Maxtech International Trading - Qatar Import Guide
Before ordering Micro Silica from Maxtech International Trading, verify the SiO2 purity and particle size distribution to ensure they align with your concrete mix design requirements. Request third-party test reports or certificates of analysis to confirm compliance with QCS 2014 or ASTM C1240 standards, as these directly impact the material’s pozzolanic performance.
Confirm the packaging type (25 kg bags or big bags) and whether the silica fume is densified or undensified, as this affects handling, storage, and transportation costs. Discuss Incoterms such as FOB or CIF for Qatar-based shipments, and clarify payment terms like L/C or T/T to avoid delays. Lead times may vary based on production schedules and export logistics.
Conduct quality checks upon receipt, including tests for moisture content, bulk density, and fineness, to ensure the material meets the specified range. Inspect packaging for damage or contamination, and request a material safety data sheet (MSDS) for handling guidelines. Documentation such as certificates of origin and compliance should accompany the shipment for customs and project verification.
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30 suppliersBuy Micro Silica (Silica Fume in Bulk — Supplier in Qatar
When sourcing Micro Silica (Silica Fume) for your business, securing the right balance of quality and cost is essential. Maxtech International Trading, a supplier based in Qatar, offers this product with key specifications including Microsilica / Silica Fume (Undensified or Densified), SiO2 Content 85% - 98%, Al2O3 <1.5%, Fe2O3 <1.0%, Loss on Ignition (LOI) 1-4%, and < 1 micron (90%+ particles smaller than 1 µm). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $200 – $400 / MT and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. 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.
Micro Silica (Silica Fume Specifications, Trade Terms & Pricing
Importing Micro Silica (Silica Fume requires careful attention to shipping logistics, customs compliance, and secure payment terms. Maxtech International Trading 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 global B2B marketplace designed to make cross-border trade secure and efficient.
About Maxtech International Trading — Supplier in Qatar
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Micro Silica (Silica Fume for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Silica Sand category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Micro Silica (Silica Fume — Shipping, Logistics & Customs
Importing Micro Silica (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 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 Micro Silica (Silica Fume
What is the wholesale price of Micro Silica (Silica Fume)?
The current listed wholesale price for Micro Silica (Silica Fume) from Maxtech International Trading is $200 – $400 / MT on FOB terms from Qatar. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Maxtech International Trading through EximNext.
What is the Minimum Order Quantity (MOQ) for Micro Silica (Silica Fume?
The supplier, Maxtech International Trading, has set a Minimum Order Quantity (MOQ) of 1 Unit for Micro Silica (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 (Silica Fume)?
For international shipping and customs clearance, Micro Silica (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 Micro Silica (Silica Fume from Qatar?
To import Micro Silica (Silica Fume from Qatar, negotiate shipping terms (FOB, CIF, or EXW) directly with Maxtech International Trading. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
How can I check Maxtech International Trading before ordering?
Open the Maxtech International Trading company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Micro Silica (Silica Fume)?
The key specifications for Micro Silica (Silica Fume) supplied by Maxtech International Trading include Microsilica / Silica Fume (Undensified or Densified), SiO2 Content 85% - 98%, Al2O3 <1.5%, Fe2O3 <1.0%, Loss on Ignition (LOI) 1-4%, and < 1 micron (90%+ particles smaller than 1 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 (Silica Fume?
Maxtech International Trading offers Micro Silica (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 (Silica Fume the most?
Micro Silica (Silica Fume is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Maxtech International Trading through our platform.
What certifications does this Micro Silica (Silica Fume supplier hold?
Maxtech International Trading maintains international quality certifications. These ensure that the Micro Silica (Silica Fume meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Micro Silica (Silica Fume) on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Maxtech International Trading 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 Maxtech International Trading.
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