Butadiene rubber br

When evaluating BR, the most critical factor is the Cis-1,4 content. High-cis BR (typically >95%) offers superior abrasion resistance and resilience, making it ideal for tire treads. You must also verify the Mooney Viscosity (ML 1+4 at 100°C), which usually ranges between 40 and 60 for standard grades, as this determines the processability and mixing efficiency in your production line. Additionally, check for volatile matter (<0.75%) and ash content (<0.3%) to ensure high purity.

BR is primarily used in the automotive industry, specifically for tire sidewalls and treads due to its excellent low-temperature flexibility and heat buildup resistance. Beyond tires, it is a vital component in High Impact Polystyrene (HIPS) production as a toughening agent. It is also widely used in industrial belts, hoses, footwear soles, and golf balls where high energy restitution is required.

For international trade, ensure the supplier complies with ISO 9001 for quality management and ISO 14001 for environmental standards. If the rubber is used in footwear or consumer goods, it must meet REACH (EU) or TSCA (US) regulations regarding hazardous substances. For specific applications like food-grade seals, verify FDA compliance. Always request a COA (Certificate of Analysis) for every batch to ensure consistency with the ASTM D3189 standard.

To maximize value, buyers should monitor the price of Butadiene monomer, which is the primary feedstock. Purchasing during market troughs or signing annual framework agreements can hedge against price volatility. Additionally, sourcing from large-scale manufacturers on Made-in-China.com allows for volume-based discounts, often reducing the price by 5-10% for orders exceeding 20-ton (FCL) containers. Consider synthetic rubber blends (e.g., BR/SBR) if your application allows for cost reduction without compromising performance.

The main risks include quality inconsistency and shipping delays. To mitigate these, always use Trade Assurance services and hire third-party inspection agencies (like SGS or Intertek) to perform pre-shipment inspections (PSI). Ensure the packaging is moisture-proof (typically 25kg bales wrapped in polyethylene film) to prevent degradation during long-term sea freight.

Focus on long-term partnership rather than one-off transactions. Ask for free samples (5-10kg) to conduct lab testing before committing to a full container. Negotiate payment terms such as 30% deposit and 70% against the Bill of Lading (B/L). For established buyers, requesting LC (Letter of Credit) at sight is a secure way to handle large-scale transactions.

Butadiene Rubber is generally classified under HS Code 400220. Check for any anti-dumping duties between China and your specific country. For shipping, FOB (Free On Board) is recommended if you have a reliable freight forwarder, as it gives you more control over freight costs and transit times. Ensure the supplier provides a Material Safety Data Sheet (MSDS) to comply with international maritime dangerous goods (IMDG) regulations, even though BR is typically classified as non-hazardous.

Verify the supplier's Business License and Export Qualification on Made-in-China.com. Look for 'Audited Suppliers' who have undergone on-site verification. Avoid making payments to private bank accounts; always ensure the beneficiary name matches the registered company name on the invoice to prevent fraud.