PPGI o se acronym mo prepainted uʻamea uamea, e faʻaaogaina uʻamea e fai ma substrate.A maeʻa le faʻamaʻiina muamua (faʻamaʻi vailaʻau ma vailaʻau faʻaliliu togafitiga), faʻapipiʻi le pito i luga i se faʻapipiʻi poʻo ni vaega faʻapipiʻi, e ala i le taoina ma le faʻamalolo.
O le PPGL o loʻo valiina muamua le uʻamea galvalume.O mea fa'avae o le u'amea/aluzinc coil.
O le ata vali e mafai ona tatou faia 10-30microns.O le maualuga o le ata vali, o le umi o le ola tautua o le lanu.
O mea vali o PE, SMP, HDP, PVDF, ects.