PIPI HANA HANA

1) Ka uhi luna: pale i ka lā a pale i nā kukuna ultraviolet mai ka hōʻino ʻana i ka uhi; i ka hiki ʻana o ka topcoat i ka mānoanoa i ʻōlelo ʻia, hiki iā ia ke hana i kahi kiʻiʻoniʻoni pale pale pale, e hōʻemi ana i ka wai permeability a me ka oxygen permeability.
ʻO ka uhi mua: kōkua i ka hoʻoikaika ʻana i ka hoʻopili ʻana i ka substrate, e hōʻemi ana i ka pena ʻana i ka desorb ma hope o ka hoʻopiha ʻia ʻana o ke kiʻi pena me ka wai, a hoʻomaikaʻi pū kekahi i ka pale ʻana i ka corrosion, no ka mea, loaʻa i ka primer nā puaʻa corrosion-inhibiting, e like me ka chromate pigments, ka mea e passivate i ka anode a hoʻomaikaʻi i ka pale ʻana i ka corrosion
2) Papa hoʻololi kemika: hoʻomaikaʻi i ka pili ʻana ma waena o ka pā (galvanized, galvalume, zn-al-mg, etc.) a me ka uhi (pena)
3) Ka uhi metala: ka hoʻopili zinc maʻamau, ka uhi aluzinc a me ka zinc aluminum magnesium coating, ka mea i loaʻa ka hopena nui loa i ke ola lawelawe o ka huahana. ʻOi aku ka mānoanoa o ka uhi metala, ʻoi aku ka kiʻekiʻe o ka pale ʻana i ka corrosion.
4) Metala kumu: Hoʻohana ʻia ka pā anuanu, a ʻo nā waiwai like ʻole e hoʻoholo i ka hana o ka pā kala, e like me ka ikaika
5) Ka uhi lalo: pale i ka papa kila mai ka ʻino ʻana mai loko mai, ma ke ʻano he ʻano papa ʻelua (2/1M a i ʻole 2/2 primer coating + lalo uhi), inā hoʻohana ʻia ma ke ʻano he papa hoʻohui, ʻōlelo ʻia e hoʻohana i kahi ʻano papa hoʻokahi ( 2/1)