PVC abu ne na filastik, wanda cikakken sunansa shine polyvinyl chloride. Amfaninsa shine ƙananan farashi, tsawon rai, kyakkyawan moldability da kyakkyawan aiki. Mai ikon jure lalata iri-iri a wurare daban-daban. Wannan yana ba da damar yin amfani da shi sosai a cikin gine-gine, likitanci, mota, waya da na USB da sauran fannoni. Tun da babban albarkatun kasa ya fito ne daga man fetur, zai yi mummunan tasiri a kan yanayin. Farashin sarrafawa da sake yin amfani da kayan PVC yana da girma kuma yana da wahala a sake fa'ida.
PU abu shine taƙaitaccen abu na polyurethane, wanda shine kayan aiki na roba. Idan aka kwatanta da kayan PVC, kayan PU yana da fa'idodi masu mahimmanci. Da farko dai, kayan PU sun fi sauƙi kuma sun fi dacewa. Har ila yau, ya fi na roba, wanda zai iya ƙara jin dadi da rayuwar sabis. Abu na biyu, PU abu yana da babban santsi, hana ruwa, mai-hujja da karko. Kuma ba shi da sauƙi a karce, fashe ko nakasa. Bugu da ƙari, abu ne mai dacewa da muhalli kuma ana iya sake amfani dashi. Wannan yana da babban tasiri na kariya akan muhalli da muhalli. Kayan PU yana da fa'idodi fiye da kayan PVC dangane da ta'aziyya, hana ruwa, karko da abokantakar lafiyar muhalli.