Ifilim enemibala eqaqambileyo yokugquma isilingi yenziwe ngepleyiti yentsimbi epeyintiweyo njengesiseko sezinto, ifilimu ephuma kumazwe angaphandle yePVC ecwebezelayo kunye nefilimu yombala womlingo wePET, kwaye igqunywe ngencamathelisa ekhethekileyo kumphezulu webhodi. Ipateni yomphezulu ityebile ngombala kwaye ayipheli, kwaye ineenzuzo zokuchasana nokunxiba, ukuxhathisa impembelelo, ukungangeni kwamanzi, ukuvutha komlilo, ukucoca okulula, njl. Ifilimu ye-PVC ephezulu ye-gloss ine-flexibility ecebileyo, i-gloss kunye nokwahlukana kombala, ukuguqula ngokupheleleyo umbala opholileyo omnye kumphezulu wesilingi yesinyithi.