Hakanan ana kiran sunan coil ɗin ppgi mai launi wanda aka riga aka yi masa fentin karfe (gajeren "ppgi coil"), yana amfani da galvanized azaman substrate.Bayan surface pretreatment (sinadaran degreasing da sinadaran hira magani), launin toka ppgi karfe nada surface mai rufi da wani Layer ko dama yadudduka na shafi, ta hanyar yin burodi da kuma curing, sa'an nan ya zama PPGI.In Bugu da kari ga kariya daga zinc Layer, da Organic shafi a kan. Layer na zinc yana taka rawa wajen rufewa da kuma kare launi mai rufin ƙarfe mai rufi, yana hana ƙwayar ƙarfe daga tsatsa, kuma rayuwar sabis ɗin ta kusan sau 1.5 fiye da na galvanized karfe.
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.
Pupolar launi na prepainted karfe nada: ruwan inabi ja (ral3005), harshen wuta ja (ral3000), Ruby ja (RAL3003), siginar ja (RAL 3001), Coral ja (RAL 3016), Traffic ja (RAL 3020)