Reclaim rubber

When sourcing reclaim rubber, you must prioritize Tensile Strength (MPa) and Elongation at Break (%). For high-quality applications, look for tensile strength between 6MPa to 10MPa. Additionally, verify the Moisture Content (less than 1%) and Ash Content (typically 10-20%) to ensure the material doesn't compromise the integrity of your final rubber compound. The Mooney Viscosity [ML(1+4)100°C] is also critical for determining how the material will behave during your specific extrusion or molding processes.

B2B buyers must ensure the product is REACH and RoHS compliant, especially for export to the EU or North America. Request Material Safety Data Sheets (MSDS) and third-party lab reports to confirm the absence of Polycyclic Aromatic Hydrocarbons (PAHs) and other hazardous substances. If your brand focuses on sustainability, prioritize suppliers with ISO 14001 (Environmental Management) and certifications that prove the rubber is sourced from 100% recycled scrap tires or EPDM waste.

Reclaim rubber is primarily used in tire manufacturing (inner liners and sidewalls), conveyor belts, rubber mats, and automotive gaskets. The functional benefits include reduced power consumption during mixing, improved extrusion rates, and better aging properties. Economically, it can reduce raw material costs by 20% to 40% when used as a partial replacement for natural or synthetic rubber without significantly degrading physical properties.

Insist on a Certificate of Analysis (COA) for every batch. Professional suppliers on Made-in-China.com should provide results for Specific Gravity, Acetone Extract, and Carbon Black content. For large-scale industrial use, request a refining consistency check to ensure the rubber is free from metal particles or fabric fibers that could cause defects in high-pressure applications.

The most significant risk is quality inconsistency between samples and bulk orders. Because reclaim rubber is made from waste, the feedstock can vary. To mitigate this, use Trade Assurance services and hire third-party inspection agencies (like SGS or Intertek) to perform loading supervision. Another risk is shipping delays due to hazardous material classification; ensure your supplier provides the correct HS Code (typically 4003.00.0000) to avoid customs seizures.

Negotiate based on volume tiers and long-term contracts. Reclaim rubber prices are sensitive to global crude oil and natural rubber market fluctuations. Aim for FOB (Free On Board) terms to maintain control over your logistics costs. For new suppliers found on Made-in-China.com, start with a trial order of 1-5 tons before committing to full container loads (FCL) to verify the processing compatibility with your machinery.

Reclaim rubber is usually shipped in bales or sheets on pallets. Ensure the supplier uses anti-sticking agents (like calcium carbonate powder) between sheets to prevent fusion during high-temperature transit in containers. Storage should be in a cool, dry, and ventilated warehouse away from direct sunlight and heat sources to prevent premature vulcanization or degradation of the material.

Check if the supplier is an Audited Supplier on Made-in-China.com. Look for their factory audit reports which detail their production capacity, machinery (like crackers and refiners), and R&D capabilities. A credible supplier should have at least 5-10 years of export experience and be able to provide references from clients in your specific industry (e.g., tire retreading or footwear).