Ikhoyili ye-ppgi ehlanganiswe ngombala ibizwa nangokuthi ikhoyili yensimbi ependwe kusengaphambili (okufushane ngokuthi “ikhoyili ye-ppgi”), isebenzisa uthayela njenge-substrate.Ngemuva kokwelashwa kwangaphambili (ukususwa kwamakhemikhali kanye nokwelashwa kokuguqulwa kwamakhemikhali), indawo yekhoyili yensimbi empunga ye-ppgi embozwe ngongqimba noma izingqimba ezimbalwa zokunamathela, ngokubhaka nokwelapha, bese iba yi-PPGI. ungqimba lwezinki ludlala indima ekumbozeni nasekuvikeleni ikhoyili yensimbi enamabala anombala, ivimbele ikhoyili yensimbi ukuthi ingagqwali, futhi ukuphila kwayo kwenkonzo kungaphezu kokuphindwe izikhathi ezingu-1.5 kunekhoyili yensimbi.
Ifilimu kapende esingayenza 10-30microns.Lapho ifilimu kapende iphakeme, iba yinde impilo yesevisi yombala.
Izinto zokudweba ziyi-PE, SMP, HDP, PVDF, ects.
Umbala we-pupolar wekhoyili yensimbi ependwe kusengaphambili: iwayini elibomvu (ral3005), obomvu kwelangabi (ral3000), Ruby obomvu(RAL3003), obomvu Ophawu(RAL 3001 ),Obomvu be-Coral(RAL 3016 ),Obomvu bethrafikhi(RAL 3020)