PPGI shine acronym na ƙarfe na galvanized wanda aka riga aka rigaya, yana amfani da galvanized azaman substrate.Bayan surface pretreatment (sinadaran degenreasing da sinadaran hira magani), da surface mai rufi da Layer ko da dama yadudduka na shafi, ta hanyar yin burodi da kuma curing, sa'an nan ya zama PPGI.
Fim ɗin fenti wanda za mu iya yin 10-30microns.Mafi girman fim ɗin fenti, tsawon rayuwar sabis na launi.
Kayan zanen sune PE, SMP, HDP, PVDF, ects.