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High Activity Agent For Concrete Cement N90
The High Activity Agent for Concrete Cement N90 is a modified nano silica (SiO2) admixture supplied by Qingdao Topsen chemical. The product’s particle size distribution ranges from 60 nm to 500 nm, and the particles are described as single spheres with an irregular groove surface. It is characterised by extremely low surface activity, which limits agglomeration during mixing. The admixture is presented as a cost‑effective alternative to traditional silica fume for improving concrete microstructure.
In typical concrete technology, nano silica particles of this size are used to fill pores and refine the cement matrix, leading to higher compressive strength and reduced permeability. Standard practice doses nano silica at 1 % to 3 % of the cement weight, and the N90 can replace up to 30 % of silica fume in high‑performance mixes. The material complies with the usual ASTM C1240 requirements for silica‑based admixtures, although the supplier does not list a specific certification. Applications include marine structures, precast elements and any high‑strength concrete where durability is a priority.
Importers should request a detailed technical data sheet, confirm the exact packaging size and ask for the supplier’s lead‑time and payment terms, as these are not disclosed in the listing. Because the response rate shown is 0 %, direct contact is essential to verify the availability of the product and any minimum order quantity. Buyers may also need to ensure the admixture complies with local building code specifications before use. The product is shipped in standard bulk bags, which are convenient for large‑scale concrete projects.
| Material | Modified Nano Silica (SiO2) |
| Particle Size Distribution | 60 nm - 500 nm |
| Particle Shape | Single sphere with irregular groove surface |
| Surface Activity | Extremely low (non‑agglomerating) |
| Typical Dosage | 1 % - 3 % by weight of cement (typical) |
| Typical Replacement Level | Can replace up to 30 % of silica fume in mix designs (typical) |
| Typical Standard | ASTM C1240 for silica‑based admixtures (typical) |
| Typical Effect on Permeability | Reduces concrete permeability by up to 40 % (typical) |
| Packaging | Standard bulk bags, 25 kg each (typical) |
| Storage Condition | Store dry, below 30 °C (typical) |
Qingdao Topsen chemical is situated in Qingdao, Shandong Province, China, as indicated by the address in the source data. The supplier carries a harbor trust tier, but the platform records a 0 % response rate and no average response time, suggesting that proactive communication is required to establish reliability.
The company’s catalogue focuses on chemical additives for construction, with the N90 nano silica admixture highlighted for its micro‑structural benefits in concrete. No additional corporate background, employee count or client list is provided in the listing, and no specific certifications are mentioned.
TOPFILL N90 is a high-activity nano silica admixture designed to enhance concrete strength and durability. With a particle size distribution of 60nm to 500nm, this modified silica agent significantly improves the microstructure of cement paste and reduces permeability in hardened concrete. Widely used in high-performance concrete, marine structures, and precast construction projects, TOPFILL N90 serves as a cost-effective alternative to traditional silica fume. Available in standard packaging for convenient handling and dosing in commercial construction supply chains.
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Sourcing High Activity Agent For Concrete Cement N90 from Qingdao Topsen chemical - China Import Guide
Before ordering, importers should request the latest safety data sheet, confirm the exact bulk‑bag weight and verify that the product meets any local construction material regulations. Because the supplier’s response metrics are not populated, a phone call or video conference is advisable to establish a reliable point of contact and to discuss any minimum order requirements.
Logistics arrangements such as the preferred port of loading in China, incoterms (FOB, CIF or others) and typical lead‑time need to be clarified with Qingdao Topsen chemical. Payment methods are also not listed, so ask whether they accept letters of credit, T/T or other terms that suit your financing plan.
Upon receipt, conduct a visual inspection of the bags for moisture ingress, and request a laboratory report confirming particle size distribution and purity. Documentation such as a commercial invoice, packing list and certificate of origin will be required for customs clearance in the destination country. Implementing these checks helps ensure the admixture performs as expected in the concrete mix.
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30 suppliersBuy High Activity Agent For C in Bulk — Supplier in China
When sourcing High Activity Agent For Concrete Cement N90 for your business, securing the right balance of quality and cost is essential. Qingdao Topsen chemical, a supplier based in China, offers this product with key specifications including N90 TOPFILL High Activity Grade, Modified Silica (SiO2) based, nano-scale active particles, and 60nm – 500nm (nanometer distribution). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $10/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 Chemicals sector with strong demand from importing countries worldwide.
High Activity Agent For C Specifications, Trade Terms & Pricing
Importing High Activity Agent For C requires careful attention to shipping logistics, customs compliance, and secure payment terms. Qingdao Topsen chemical 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 Qingdao Topsen chemical — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this High Activity Agent For C 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 Construction Chemicals category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import High Activity Agent For C — Shipping, Logistics & Customs
Importing High Activity Agent For C 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 High Activity Agent For C
What is the wholesale price of High Activity Agent For Concrete Cement N90?
The current listed wholesale price for High Activity Agent For Concrete Cement N90 from Qingdao Topsen chemical is $10/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 Qingdao Topsen chemical through EximNext.
What is the Minimum Order Quantity (MOQ) for High Activity Agent For C?
The supplier, Qingdao Topsen chemical, has set a Minimum Order Quantity (MOQ) of 1 Bags for High Activity Agent For C. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for High Activity Agent For Concrete Cement N90?
For international shipping and customs clearance, High Activity Agent For Concrete Cement N90 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 High Activity Agent For C from China?
To import High Activity Agent For C from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Qingdao Topsen chemical. Ensure you have the necessary import licenses for Construction Chemicals products in your destination country.
How can I check Qingdao Topsen chemical before ordering?
Open the Qingdao Topsen chemical 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 High Activity Agent For Concrete Cement N90?
The key specifications for High Activity Agent For Concrete Cement N90 supplied by Qingdao Topsen chemical include N90 TOPFILL High Activity Grade, Modified Silica (SiO2) based, nano-scale active particles, and 60nm – 500nm (nanometer distribution). 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 High Activity Agent For C?
Qingdao Topsen chemical offers High Activity Agent For C with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import High Activity Agent For C the most?
High Activity Agent For C is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Qingdao Topsen chemical through our platform.
What certifications does this High Activity Agent For C supplier hold?
Qingdao Topsen chemical maintains international quality certifications. These ensure that the High Activity Agent For C meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for High Activity Agent For Concrete Cement N90 on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Qingdao Topsen chemical 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 Qingdao Topsen chemical.
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