PET polyethylene terephthalate price

When sourcing PET, the most critical factor is Intrinsic Viscosity (IV). For Bottle Grade PET, an IV of 0.80–0.85 dL/g is standard, while Textile Grade (Fiber) usually requires 0.64–0.70 dL/g. Additionally, you must verify the melting point (typically 245-260°C), moisture content (<0.1%), and ash content, as these directly impact the efficiency of your injection molding or extrusion lines.

The choice depends on the end-use: Food-grade virgin PET is mandatory for beverage bottles and food packaging to ensure FDA or EFSA compliance. For sustainable branding, rPET (Recycled PET) is increasingly popular, but buyers must check the L a b* color values** to ensure the flakes or pellets won't yellow the final product. Industrial-grade PET is suitable for strapping, sheets, or bristles where aesthetic clarity is less critical than tensile strength.

Suppliers should ideally hold ISO 9001 for quality management and ISO 14001 for environmental standards. For food-contact materials, ensure the supplier provides SGS or Intertek test reports confirming compliance with REACH (EU) or CFR 21 (USA) regulations. If purchasing recycled PET, look for the Global Recycled Standard (GRS) certification to verify the supply chain's integrity.

PET prices are highly sensitive to crude oil and PTA/MEG feedstock costs. To optimize procurement, consider bulk purchasing (20ft or 40ft FCL) to reduce the per-ton freight cost. Negotiating long-term supply contracts can hedge against price spikes. On Made-in-China.com, look for 'Diamond Members' or 'Audited Suppliers' who offer tiered pricing, where orders exceeding 20 tons often trigger significant discounts.

Always request a Pre-Shipment Inspection (PSI) conducted by a third party like SGS or V-Trust. Ensure the Certificate of Analysis (COA) provided by the factory matches the actual batch number. For first-time orders, use Trade Assurance or Letter of Credit (L/C) to ensure payment is only released upon proof of shipping and quality compliance.

PET is often shipped in 1.1-ton jumbo bags or 25kg PP woven bags. Ensure the container is moisture-proof and free of contaminants, as PET is hygroscopic. For cross-border shipping, clarify the Incoterms (FOB vs CIF); given the weight-to-value ratio of PET, sea freight is the only economically viable option for bulk orders. Ensure the supplier provides a Material Safety Data Sheet (MSDS) for smooth customs clearance.

Focus on volume and consistency. Suppliers prefer 'stable' buyers. Mention your annual procurement forecast to leverage better spot prices. On Made-in-China.com, use the 'Comparison' tool to evaluate multiple audited manufacturers simultaneously. Ask for free samples (buyer pays courier) to test the IV levels in your own lab before committing to a full container.