1. He pai mō te whakakanapa i ngā muka matū o te polyester, te nairona me te polyprolylene.
2. He pai mō te whakama me te whakamārama i te kirihou polypropylene, te PVC mārō, te ABS, te EVA, te polystyrene, te polycarbonate, me ētahi atu.
3. E tika ana kia tāpirihia ki ngā whakakotahitanga whānui o te polyester me te nairona.