1. Ọ dabara adaba maka ime ka eriri kemịkalụ nke polyester, naịlọn na polyprolylene na-enwu gbaa.
2. Ọ dabara adaba maka ime ka plastik polypropylene dị ọcha ma na-enwu gbaa, dịka PVC siri ike, ABS, EVA, polystyrene, polycarbonate, wdg.
3. A na-etinye ya na polymerizations izugbe nke polyester na naịlọn.