ʻO PPGI ka papa kila i uhi ʻia (galvanized, aluminized zinc, nickel-plated, etc.) ka mālama ʻana i nā kemika ʻili (degreasing, phosphating, chromic acid passivation), a laila uhi ʻia me ka pena, a laila nā huahana i hoʻomoʻa ʻia.

Nā Pōmaikaʻi: loaʻa iā ia ka ikaika mechanical o ka papa kila a me ka hana maʻalahi e hoʻoponopono, a he maikaʻi ke kūpaʻa o ka mea olaola i ka hoʻonaninani a me ka pale ʻana i ka pala. He paʻa ka hoʻopili ʻana o ka uhi a hiki ke mālama i ke kala hou no ka manawa lōʻihi.

Noi: hoʻohana nui ʻia i ke kūkulu ʻana, nā mīkini homenā lako hale, nā pono lehulehu a me ka halihali a me nā kahua ʻē aʻe.