Hāʻawi kā mākou mau mea hoʻoheheʻe paʻakikī metala i nā koho kala maikaʻi loa no kāu huahana plastik. Inā ʻoe i loko o ka ʻoihana kaʻa, uila a i ʻole nā ʻoihana hoʻopihapiha, kūpono kā mākou kala solvent no ka loaʻa ʻana o ke kala ikaika a lōʻihi. Loaʻa i kēia mau kala ke kūpaʻa wela maikaʻi loa a hiki ke kū i nā kaʻina hana ʻoi loa, e hōʻoiaʻiʻo ana i ka uku kala paʻa a lōʻihi.