1.Ifanele ukugqama kwemicu yamakhemikhali ye-polyester, inayiloni ne-polyprolylene.
2.Ifanele ukwenziwa mhlophe nokukhanya kwepulasitiki ye-polypropylene, i-PVC eqinile, i-ABS, i-EVA, i-polystyrene, i-polycarbonate, njll.
3.Kuyasebenza ukuthi kwengezwe kuma-polymerizations jikelele we-polyester nenayiloni.