ʻO ka pena paʻi pena, ʻike ʻia hoʻi ʻo ka mea wehe pena, ka mea hoʻomaʻemaʻe pena a i ʻole ka mea wehe pena, he wai i hui pū ʻia me nā solvents e like me nā hydrocarbons chlorinated, ketones, esters, alcohols, a me benzene series. Ke hoʻohana nei i ka hiki o ka solvent ke komo a pehu i ka uhi, hiki iā ia ke wehe pono i ka surfa...
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