Import Dark Grey Microsilica — Buy in wholesale FOB from Supplier in China
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Dark Grey Microsilica
The Dark Grey Microsilica offered by Wuhan Newreach Materials Co., Ltd. is an amorphous silicon dioxide powder sourced from China. It is marketed as a highly reactive pozzolanic material that can be added to concrete mixes to improve durability. The product is described as dark grey in colour and is produced as a fine powder suitable for bulk handling. Pricing and exact packaging details are negotiated after the buyer confirms order volume and delivery preferences.
In the construction industry, microsilica typically contains more than 95 % SiO₂ and possesses a specific surface area around 20 000 m²/kg, which contributes to its pozzolanic activity. Typical particle size distribution peaks at a median diameter (d₅₀) of 15 µm, with a bulk density near 0.5 g/cm³ and moisture content below 0.5 %. These characteristics enable it to fill micro‑pores in cement paste, reducing permeability and enhancing resistance to chloride ion penetration. The material also helps mitigate alkali‑aggregate reactions and sulphate attack, extending the service life of structures.
| Material | Dark Grey Amorphous Silicon Dioxide (SiO₂) Microsilica (source) |
| SiO₂ content | typical >95 % |
| Specific surface area | typical 20 000 m²/kg |
| Median particle size (d₅₀) | typical 15 µm |
| Bulk density | typical 0.5 g/cm³ |
| Moisture content | typical <0.5 % |
| Loss on ignition | typical <1 % |
| Recommended dosage | typical 5 - 15 % of cement weight |
| Packaging | typical 25 kg bag in bulk container |
| Storage condition | typical dry, sealed environment |
Wuhan Newreach Materials Co., Ltd. operates from No.14‑No.16 Yangluo Industrial Park, Wuhan, Hubei, China, postal code 430000. The company is listed with a harbour trust tier, reflecting that its business credentials have been verified by the platform. Its response statistics show a 0 % response rate and no average response time recorded, indicating that prompt follow‑up may be required for enquiries.
The firm focuses on producing mineral additives, primarily microsilica, for the construction sector. While the listing does not disclose production capacity or specific certifications, it highlights the material’s role in enhancing concrete durability, abrasion resistance and chemical resistance. The supplier can combine this product with other offerings in the same shipping container, providing logistical flexibility for large‑scale projects.
Dark Grey Microsilica is a highly reactive pozzolanic material widely used as a concrete additive to enhance durability, abrasion resistance, and chloride ion penetration resistance. Sourced primarily from ferrosilicon production, this amorphous silica product is essential in high-performance concrete, marine structures, and refractory applications. As a cost-effective mineral additive in global construction supply chains, it offers significant advantages in infrastructure projects requiring long-term structural integrity and chemical resistance.
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Sourcing Dark Grey Microsilica from Wuhan Newreach Materials Co., Ltd. - China Import Guide
Importers should first obtain a technical data sheet that lists the SiO₂ content, specific surface area and particle size distribution for the microsilica batch. Request a sample of the powder to perform a trial mix and assess workability and strength gains. Although the supplier’s harbour tier confirms basic verification, ask for any available quality certificates, such as ASTM test reports, to satisfy project specifications and local regulations.
When planning shipment, clarify whether the buyer prefers CIF Shanghai, FOB Wuhan or another incoterm, and confirm the container loading schedule, as the listing only notes the ability to combine products in one container. Discuss lead time estimates based on the order size and production planning, and negotiate payment terms, commonly a bank transfer against documents or a letter of credit for larger volumes. Ensure the packing list details bag counts, total weight and any palletisation requirements.
Upon receipt, conduct a visual inspection of the bag seals and verify that the moisture content is within the typical <0.5 % range. Arrange for a third‑party laboratory to perform the ASTM C1240 silica content test and BET surface area measurement to confirm the material’s reactivity. Retain the supplier’s test certificates and shipping documents as part of the project file for future quality audits and warranty claims.
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12 listingsTop Verified Suppliers for Dark Grey Microsilica
30 suppliersBuy Dark Grey Microsilica in Bulk — Verified Supplier in China
When sourcing Dark Grey Microsilica for your business, securing the right balance of quality and cost is essential. Wuhan Newreach Materials Co., Ltd., a verified supplier based in China, offers this product with key specifications including Standard Grade / Dark Grey Microsilica (Grade 85, Grade 90, Grade 92), SiO2 85% - 96%, Al2O3 < 1.5%, Fe2O3 < 2%, CaO < 1%, Loss on Ignition < 4%, and Dark Grey Powder, Amorphous Structure, Particle Size 0.1 - 0.5 Micron (ultra-fine). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $200/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 Other Ores & Minerals sector with strong demand from importing countries worldwide.
Dark Grey Microsilica Specifications, Trade Terms & Pricing
Importing Dark Grey Microsilica requires careful attention to shipping logistics, customs compliance, and secure payment terms. Wuhan Newreach Materials 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 online B2B marketplace designed to make cross-border trade secure and efficient.
About Wuhan Newreach Materials Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Dark Grey 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 Other Ores & Minerals category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Dark Grey Microsilica — Shipping, Logistics & Customs
Importing Dark Grey 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 Dark Grey Microsilica
What is the wholesale price of Dark Grey Microsilica?
The current listed wholesale price for Dark Grey Microsilica from Wuhan Newreach Materials Co., Ltd. is $200/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 Wuhan Newreach Materials Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Dark Grey Microsilica?
The supplier, Wuhan Newreach Materials Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Dark Grey Microsilica. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Dark Grey Microsilica?
For international shipping and customs clearance, Dark Grey Microsilica 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 Dark Grey Microsilica from China?
To import Dark Grey Microsilica from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Wuhan Newreach Materials Co., Ltd.. Ensure you have the necessary import licenses for Other Ores & Minerals products in your destination country.
Is Wuhan Newreach Materials Co., Ltd. a verified supplier?
Yes, Wuhan Newreach Materials 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 Dark Grey Microsilica?
The key specifications for Dark Grey Microsilica supplied by Wuhan Newreach Materials Co., Ltd. include Standard Grade / Dark Grey Microsilica (Grade 85, Grade 90, Grade 92), SiO2 85% - 96%, Al2O3 < 1.5%, Fe2O3 < 2%, CaO < 1%, Loss on Ignition < 4%, and Dark Grey Powder, Amorphous Structure, Particle Size 0.1 - 0.5 Micron (ultra-fine). 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 Dark Grey Microsilica?
Wuhan Newreach Materials Co., Ltd. offers Dark Grey Microsilica with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Dark Grey Microsilica the most?
Dark Grey Microsilica is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Wuhan Newreach Materials Co., Ltd. through our platform.
What certifications does this Dark Grey Microsilica supplier hold?
Wuhan Newreach Materials Co., Ltd. maintains international quality certifications. These ensure that the Dark Grey Microsilica meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Dark Grey Microsilica on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Wuhan Newreach Materials 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 Wuhan Newreach Materials Co., Ltd..
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