I-Polyvinyl chloride (i-PVC) ilaphu eligqunywe ngelaphu leglasi, ilaphu lomqhaphu, ilaphu lemichiza yefayibha njengelaphu lesiseko, liqatywe ngetekhnoloji ekhethekileyo, ezona mpawu ziphambili zokusebenza: ukungangeni kwamanzi, ukubuyiswa kwedangatye, ubungqina bokungunda, ubungqina obubandayo, ubungqina bokugqwala (okubhekiselwa kubo njengo. amalaphu amathathu okuchasa, amalaphu amahlanu okuchasa;Ukumelana nokuguga;ukhuseleko lweUv;Ukucoca kulula;Ukumelana nobushushu obuphezulu (i-180 degrees>, iimpawu ezintle zokugquma.