1. Kūpono no ka hoʻomālamalama ʻana o nā olonā kemika o ka polyester, nylon a me ka polyprolylene.
2. Kūpono no ka hoʻokeʻokeʻo a me ka hoʻomālamalama ʻana o ka polypropylene plastic, hard PVC, ABS, EVA, polystyrene, polycarbonate, etc.
3. Hoʻopili ʻia e hoʻohui ʻia i loko o nā polymerizations maʻamau o ka polyester a me ka nylon.