IBhola yePlastiki yePolypropylene kukumelana nobushushu, ukuxhathisa kwekhemikhali kwi-corrosion yeplastiki, kubandakanya i-polyethylene (PE), i-polypropylene (PP), i-polypropylene eyongeziweyo (RPP), i-polyvinyl chloride (PVC), i-polyvinyl chloride ene-chlorine (CPVC), kunye (PVDF) njenge izinto zokupakisha inqaba.