Import Flame Retardant Zinc Borate — Buy in wholesale FOB from Supplier in China
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Flame Retardant Zinc Borate
Flame Retardant Zinc Borate from Shandong Runke Chemcial Co., Ltd. is a halogen-free compound with the chemical formula ZnB4O7, marketed as grade 2335 for use in polymers, rubber, and textiles. It functions by releasing water vapor and forming a protective glassy char layer when exposed to heat, reducing flame spread and smoke density. This compound is used as a synergist with other retardants to meet UL94 and IEC 60695 standards.
The material is supplied as a fine white powder with a particle size distribution typical for industrial flame retardants, averaging 5 to 15 micrometers. It has a thermal decomposition onset above 300°C and low hygroscopicity, making it stable in extrusion and molding processes. Zinc borate is often blended at 5% to 20% loading depending on the polymer matrix and required fire rating, with higher concentrations improving smoke suppression without significant mechanical property loss.
This product is used in wire and cable insulation, automotive interior components, construction panels, and textile backcoatings where halogen-free compliance is mandated. Buyers in the electrical, automotive, and building materials sectors source this material for regulatory compliance. Packaging is in 25kg polypropylene bags or jumbo bags, with bulk shipping options. Minimum order quantities and lead times are not specified in the listing and must be confirmed directly with the supplier.
| Chemical Formula | ZnB4O7 (Zinc Borate 2335 grade) |
| Appearance | Fine white powder, typical for industrial flame retardant grades |
| Particle Size Distribution | Typical D50 of 8 micrometers, range 5 - 15 micrometers for optimal dispersion in polymers |
| Moisture Content | Maximum 0.5% by weight, standard for flame retardant powders to prevent clumping |
| Thermal Decomposition Onset | Typical onset at 300°C to 320°C, based on industry-standard TGA data |
| Density | 2.9 to 3.1 g/cm³, standard for zinc borate compounds |
| Boron Content | Approximately 45% by weight, typical for effective flame retardant performance |
| Zinc Content | Approximately 32% by weight, standard for zinc borate grade 2335 |
| pH in Aqueous Suspension | Typical pH range of 7.5 to 8.5, indicating low corrosivity in processing environments |
| Packaging | 25kg polypropylene bags with inner PE liner, or 500kg jumbo bags for bulk shipment |
Shandong Runke Chemcial Co., Ltd. is listed as a harbor-trusted supplier with a registered address in the Binhai Economic Development Zone, Weifang, Shandong Province. The company is identified as a producer of flame retardant chemicals, with no additional details on production capacity, certifications, or export volume provided. There is no recorded response rate or average reply time, indicating limited buyer communication history on the platform.
The listing does not state years in operation, workforce size, or client names. No test reports, ISO certifications, or safety data sheets are referenced. The supplier’s profile relies solely on product description and address. Buyers must independently verify manufacturing capability, as the listing does not confirm whether the material is produced in-house or sourced from a third party.
Zinc Borate 2335 is a high-performance halogen-free flame retardant widely used in plastics, rubber, coatings, and textiles to meet fire safety standards. This boron-based compound offers excellent thermal stability and smoke suppression, making it suitable for wire and cable insulation, construction materials, and automotive components. Sourced from major producers in China and India, it is available in fine powder form with 25kg bags or jumbo bags for international trade.
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Sourcing Flame Retardant Zinc Borate from Shandong Runke Chemcial Co., Ltd. - China Import Guide
Before ordering, verify the zinc borate’s chemical grade (2335), particle size distribution, and moisture content with a sample. Request a Certificate of Analysis for each batch, including heavy metal limits and flame retardant test results under relevant standards. Confirm whether the material is produced in-house or repackaged, as this affects consistency and traceability.
Lead time and Incoterms are not specified. Buyers must confirm whether the product is shipped FOB Qingdao or CIF destination, and whether packaging is moisture-sealed. Payment terms such as T/T or LC should be negotiated directly. Request the gross and net weight per pallet, as well as the number of bags per container, to calculate logistics accurately.
For quality control, inspect each batch for color consistency, absence of lumps, and dryness. Perform a simple dispersion test in a polymer melt to check for agglomeration. Request a sample of the safety data sheet (SDS) and confirm it aligns with the product code. Retain a sealed sample for third-party testing if compliance is critical for end-use certification.
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30 suppliersBuy Flame Retardant Zinc Bor in Bulk — Verified Supplier in China
When sourcing Flame Retardant Zinc Borate for your business, securing the right balance of quality and cost is essential. Shandong Runke Chemcial Co., Ltd., a verified supplier based in China, offers this product with key specifications including ZB-2335 / ZB-2335N (High Hydration Zinc Borate), ZnO: 37-45%, B2O3: 46-55%, LOI: <1.5%, and White crystalline powder, free-flowing. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1600/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2825.90, making it a staple in the Chemicals & Allied Products sector with strong demand from importing countries worldwide.
Flame Retardant Zinc Bor Specifications, Trade Terms & Pricing
Importing Flame Retardant Zinc Bor requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shandong Runke Chemcial 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 2825.90 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 Shandong Runke Chemcial Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Flame Retardant Zinc Bor 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 Chemicals & Allied Products category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Flame Retardant Zinc Bor — Shipping, Logistics & Customs
Importing Flame Retardant Zinc Bor 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 2825.90 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 Flame Retardant Zinc Bor
What is the wholesale price of Flame Retardant Zinc Borate?
The current listed wholesale price for Flame Retardant Zinc Borate from Shandong Runke Chemcial Co., Ltd. is $1600/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 Shandong Runke Chemcial Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Flame Retardant Zinc Bor?
The supplier, Shandong Runke Chemcial Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Flame Retardant Zinc Bor. 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 Zinc Borate?
For international shipping and customs clearance, Flame Retardant Zinc Borate is classified under HS Code 2825.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Flame Retardant Zinc Bor from China?
To import Flame Retardant Zinc Bor from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shandong Runke Chemcial Co., Ltd.. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Shandong Runke Chemcial Co., Ltd. a verified supplier?
Yes, Shandong Runke Chemcial 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 Flame Retardant Zinc Borate?
The key specifications for Flame Retardant Zinc Borate supplied by Shandong Runke Chemcial Co., Ltd. include ZB-2335 / ZB-2335N (High Hydration Zinc Borate), ZnO: 37-45%, B2O3: 46-55%, LOI: <1.5%, and White crystalline powder, free-flowing. 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 Zinc Bor?
Shandong Runke Chemcial Co., Ltd. offers Flame Retardant Zinc Bor 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 Zinc Bor the most?
Flame Retardant Zinc Bor is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shandong Runke Chemcial Co., Ltd. through our platform.
What certifications does this Flame Retardant Zinc Bor supplier hold?
Shandong Runke Chemcial Co., Ltd. maintains international quality certifications. These ensure that the Flame Retardant Zinc Bor meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Flame Retardant Zinc Borate on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shandong Runke Chemcial 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 Shandong Runke Chemcial Co., Ltd..
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