Ua kapa ʻia ʻo ppgi coil i uhi ʻia i ka kala i hoʻopaʻa ʻia i ka wili kila galvanized (pōkole no ka "ppgi coil"), hoʻohana ia i ka galvanized ma ke ʻano he substrate.Ma hope o ka hoʻomaʻamaʻa mua ʻana o ka ʻili (kemika degreasing a me ka hoʻololi ʻana i ke kemika), ʻeleʻele ppgi steel coil ili i uhi ʻia me kahi papa a i ʻole kekahi mau papa o ka uhi ʻana, ma o ka kuke ʻana a me ka hoʻōla ʻana, a laila lilo i ka PPGI. ʻO ka papa zinc ka hana i ka uhi ʻana a me ka pale ʻana i ke kala i uhi ʻia i ke kila kila, ka pale ʻana i ka wili kila mai ka ʻāʻī ʻana, a ʻo kona ola lawelawe ma kahi o 1.5 mau manawa lōʻihi ma mua o ka wili kila galvanized.
ʻO ke kiʻi pena e hiki iā mākou ke hana i 10-30microns.ʻO ke kiʻekiʻe o ke kiʻi pena, ʻoi aku ka lōʻihi o ke ola lawelawe o ke kala.
ʻO ka mea pena kiʻi he PE, SMP, HDP, PVDF, ects.
ʻO ke kala pupolar o ka wili kila i pena mua ʻia: ʻulaʻula waina (ral3005), ʻulaʻula ahi (ral3000), ʻulaʻula Ruby (RAL3003), ʻulaʻula hōʻailona (RAL 3001), ʻulaʻula ʻula (RAL 3016), ʻulaʻula ʻula (RAL 3020)