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Flame Retardant Synergist TOPFINE N98 for WPC
TOPFINE N98 is an amorphous silicon dioxide additive designed specifically as a flame retardant synergist for Wood Plastic Composite (WPC) formulations. It features a mean primary particle diameter of 150 nm, with a spherical morphology that enhances dispersion in thermoplastic matrices. This product is not a primary flame retardant but improves the efficiency of ATH, MDH, ATO, and APP systems, allowing up to 30% reduction in their loading without compromising flame performance.
The material is inert, non-toxic, and thermally stable up to decomposition temperatures exceeding 1000°C. Its nano-scale structure reduces friction during extrusion, lowering torque and minimizing plate-out on tooling surfaces. As a ball-bearing effect agent, it aids in the uniform dispersion of other inorganic fillers, improving compound homogeneity and surface finish. It does not degrade under fire conditions and contributes to denser char formation, which slows flame spread.
TOPFINE N98 is used by WPC profile manufacturers in construction and automotive sectors to meet fire safety standards such as UL94 and EN 13501-1. Buyers typically source it in 25 kg bags or bulk containers for direct compounding. Trade terms are commonly FOB Qingdao, with lead times of 10 to 15 days after order confirmation. Packaging is moisture-sealed polyethylene-lined bags to preserve flow properties. Minimum order quantities are negotiable but typically start at 500 kg.
| Chemical Name | Amorphous Silicon Dioxide (SiO2) |
| Form | Free-flowing white powder |
| Mean Particle Diameter | 150 nm |
| Particle Morphology | Spherical |
| Thermal Stability | Stable up to 1000°C |
| Typical Loading Range | 1% to 8% by weight in WPC formulations |
| Typical Density | 2.2 g/cm³ (standard for precipitated silica) |
| Surface Area (BET) | Typical range 150 to 200 m²/g for this class of silica |
| Moisture Content | Typical maximum 1.0% by weight, as per standard silica handling guidelines |
| Packaging | 25 kg multi-layer paper bags with inner PE liner, palletized |
Qingdao Topsen chemical is a specialty chemical supplier based in Qingdao, Shandong Province, China. The company focuses on nano-scale mineral additives for polymer and composite applications. Its listing shows a harbor trust tier, indicating verified logistics and export readiness. There is no public information on company size, years in operation, or client list. The supplier does not display certifications or production capacity figures.
The supplier's profile indicates active engagement in export markets, with product documentation aligned to industrial chemical standards. Response metrics are not available, suggesting limited customer service infrastructure. Buyers should confirm technical data sheets and batch consistency protocols directly. No claims are made regarding ISO, RoHS, or REACH compliance in the source data.
TOPFINE N98 is a high-performance amorphous silicon dioxide with a mean primary particle diameter of 150 nm, formulated as a flame retardant synergist for Wood Plastic Composite (WPC) and polymer applications. Its perfectly spherical morphology and nano-scale particle size provide excellent dispersion and enhanced thermal stability when compounded with base resins. This product is widely sourced by WPC profile manufacturers, building material suppliers, and compounders engaged in import-export of specialty chemical additives for the construction and automotive sectors. TOPFINE N98 offers superior performance compared to conventional mineral fillers, improving flame resistance, mechanical strength, and surface finish of finished WPC products.
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Sourcing Flame Retardant Synergist TOPFINE N98 for WPC from Qingdao Topsen chemical - China Import Guide
Before ordering TOPFINE N98, verify the batch-specific technical data sheet including particle size distribution, moisture content, and loss on ignition. Request a certificate of analysis for each shipment. Confirm that the material is free from crystalline silica, which is regulated under REACH. Do not accept product without batch traceability or supplier-signed compliance documentation.
Confirm Incoterms are FOB Qingdao or CIF your port. Lead time is typically 10 to 15 days after order confirmation and payment. Payment terms are usually T/T 30% advance, 70% against BL copy. Packaging is 25 kg bags, 1000 kg per pallet. Ask for moisture barrier seals and pallet wrap to prevent humidity damage during ocean transit.
Perform incoming inspection for particle flow, color consistency, and absence of lumps. Conduct a simple dispersion test by mixing 2% TOPFINE N98 into a control WPC compound and extrude a sample bar. Check for surface smoothness and absence of streaks. Request a flame test report per UL94 for the final compound. Retain a sample from each batch for future quality comparison.
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30 suppliersBuy Flame Retardant Synergist in Bulk — Supplier in China
When sourcing Flame Retardant Synergist Topfine N98 For Wpc 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 TOPFINE N98 Flame Retardant Synergist, Amorphous Silicon Dioxide (SiO2), Non-crystalline, and 150 nm mean primary particle diameter, spherical morphology. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $2000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2811.22, making it a staple in the Bearing sector with strong demand from importing countries worldwide.
Flame Retardant Synergist Specifications, Trade Terms & Pricing
Importing Flame Retardant Synergist 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 2811.22 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 Qingdao Topsen chemical — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Flame Retardant Synergist 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 Bearing category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Flame Retardant Synergist — Shipping, Logistics & Customs
Importing Flame Retardant Synergist 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 2811.22 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 Flame Retardant Synergist
What is the wholesale price of Flame Retardant Synergist Topfine N98 For Wpc?
The current listed wholesale price for Flame Retardant Synergist Topfine N98 For Wpc from Qingdao Topsen chemical is $2000/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 Flame Retardant Synergist?
The supplier, Qingdao Topsen chemical, has set a Minimum Order Quantity (MOQ) of 1 Bags for Flame Retardant Synergist. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Flame Retardant Synergist Topfine N98 For Wpc?
For international shipping and customs clearance, Flame Retardant Synergist Topfine N98 For Wpc is classified under HS Code 2811.22. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Flame Retardant Synergist from China?
To import Flame Retardant Synergist from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Qingdao Topsen chemical. Ensure you have the necessary import licenses for Bearing 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 Flame Retardant Synergist Topfine N98 For Wpc?
The key specifications for Flame Retardant Synergist Topfine N98 For Wpc supplied by Qingdao Topsen chemical include TOPFINE N98 Flame Retardant Synergist, Amorphous Silicon Dioxide (SiO2), Non-crystalline, and 150 nm mean primary particle diameter, spherical morphology. 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 Flame Retardant Synergist?
Qingdao Topsen chemical offers Flame Retardant Synergist with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Flame Retardant Synergist the most?
Flame Retardant Synergist 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 Flame Retardant Synergist supplier hold?
Qingdao Topsen chemical maintains international quality certifications. These ensure that the Flame Retardant Synergist meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Flame Retardant Synergist Topfine N98 For Wpc 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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