| Commodity thermoplastics | Resins for high-volume molding, extrusion, film, pipe, and packaging applications. | Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), and polyethylene terephthalate (PET); commonly supplied as pellets, with some grades available as powder or flakes. | Confirm the exact polymer grade, processing method, intended application, and relevant properties. Grades within the same polymer family can differ substantially. |
| Engineering plastics | Materials selected for applications that require particular mechanical, thermal, or electrical performance. | Acrylonitrile butadiene styrene (ABS), polyamide (PA), polycarbonate (PC), polyoxymethylene (POM), and polybutylene terephthalate (PBT), generally in pellet form. | Review the grade’s technical data sheet (TDS), processing guidance, moisture-handling requirements, and application-specific performance data. |
| Recycled polymers | Recycled resin options made from post-consumer or post-industrial feedstock, where available. | Recycled PE, PP, PET, and other polymer streams, supplied as pellets, flakes, or regrind depending on the material and processing stage. | Ask about recycled-content calculation, feedstock source, batch consistency, contamination controls, and any documentation needed for the destination market or end use. |
| Compounds and modified grades | Resins formulated to meet specified processing or performance needs. | Glass-fiber-reinforced grades, mineral-filled compounds, impact-modified polymers, and flame-retardant or UV-stabilized formulations. | Verify additive or filler content, color, target properties, processing compatibility, and whether the formulation is suitable for the intended regulatory or end-use requirements. |
| Colorants and additives | Concentrates or additives used to adjust color, processing behavior, or selected material properties. | Color masterbatch, processing aids, stabilizers, and other additive concentrates, commonly supplied in pellet or powder form. | Check the carrier resin, recommended dosage, compatibility with the base polymer, and any effects on appearance or finished-part performance. |
| Technical specifications and quality records | Product and shipment information to help buyers assess grade suitability and verify delivered batches. | TDS, safety data sheets (SDS), and, when offered, a certificate of analysis (COA) for a shipment or production lot. | Check that the documents match the grade and batch. Test methods may include melt-flow rate (ISO 1133 or ASTM D1238) and density (ISO 1183); methods and reported values should be confirmed for each product. |
| Compliance and traceability information | Declarations or supporting records that may help with customer, product, or market-specific compliance checks. | Material composition details, batch identification, and applicable regulatory or product declarations, depending on the supplier, grade, and market. | Requirements differ by country and application. Specify the destination market and intended use, and verify documents with the relevant compliance professional or authority. |
| Packaging and shipment preparation | Packaging and export arrangements suited to the order size, material, and transport plan. | Bagged resin, bulk bags, or other agreed packaging; shipment may be arranged by road, sea, rail, or air where practical. | Confirm package size, labeling, palletization, loading method, moisture protection where relevant, and responsibility for export and import procedures. |
| Commercial and logistics coordination | Quotations and order coordination for domestic or international purchases. | Pricing, minimum order quantity, production or dispatch timing, payment terms, and agreed delivery terms. | Compare offers on the same grade, quantity, packaging, delivery location, and Incoterms® rule and version. Confirm lead times and order conditions in writing. |