Sbr 1712 price

SBR 1712 is an oil-extended cold polymerized styrene-butadiene rubber. When evaluating price, you must verify the Styrene content (typically 23.5%) and the Oil content (usually 37.5 parts of highly aromatic oil or TDAE oil per 100 parts of base polymer). Ensure the Mooney Viscosity (ML 1+4 at 100°C) falls within the standard range of 42 to 52 units, as deviations significantly impact processing costs and final product durability.

The type of extender oil used is a major price driver. Traditional High Aromatic (HA) oils are cheaper but restricted in many regions due to PAH (Polycyclic Aromatic Hydrocarbons) compliance. For export to the EU or North America, you must ensure the SBR 1712 uses TDAE (Treated Distillate Aromatic Extract) or RAE (Residual Aromatic Extract) oils to meet REACH regulations. Non-compliant rubber may be cheaper but carries high legal and seizure risks.

SBR 1712 is primarily used in the tire industry for tread compounds, as well as in conveyor belts, hose pipes, and automotive floor mats. Its high resistance to abrasion and excellent traction make it a staple in heavy-duty rubber goods. When sourcing, specify your end-use to the supplier, as they may offer different grades or masterbatches optimized for specific mechanical properties.

Request a COA (Certificate of Analysis) for every batch. Key metrics to check include Ash content (<0.5%), Volatile matter (<0.75%), and Organic Acid content (4.0% - 6.0%). For large-scale B2B procurement, it is highly recommended to conduct a rheometer test to evaluate the curing characteristics (Ts2, Tc90) to ensure compatibility with your existing production molds.

The most significant risk is quality inconsistency between samples and bulk cargo, particularly regarding the oil-to-polymer ratio. Another risk is price volatility linked to crude oil and butadiene market fluctuations. To mitigate this, use Trade Assurance services on Made-in-China.com and consider third-party inspections (like SGS or Intertek) at the loading port to verify weight and packaging integrity.

Negotiations should be based on current market indices for Butadiene and Styrene. Request a breakdown of the TCO (Total Cost of Ownership), including palletization and moisture-proof packaging. For orders exceeding 20-ton FCL (Full Container Load), buyers can typically negotiate a 5-8% discount compared to LCL pricing. Always clarify if the quoted price is FOB (Free On Board) or CIF (Cost, Insurance, and Freight) to avoid hidden logistics surcharges.

SBR 1712 is usually shipped in 35kg bales wrapped in dispersible PE film, packed in wooden crates or metal skids. It must be stored in a cool, dry, and ventilated warehouse away from direct sunlight and heat sources to prevent polymer degradation or cold flow. Ensure the shipping container is inspected for leaks or odors that could contaminate the rubber, especially for high-precision automotive applications.