Ma ke kahua o ka hana ʻoihana, ʻo ka pōʻino o ka ʻili i nā mea hana he pilikia lōʻihi a lōʻihi loa. ʻO ka lole, ka corrosion, ka hopena a me nā mea ʻē aʻe e hoʻoweliweli mau i ka hana maʻamau o nā mea hana, ʻaʻole wale e hōʻemi i ka pono hana, akā hoʻonui nui hoʻi i nā kumukūʻai mālama a me ka downtime.
Anti-Scratch Sheet, ma ke ʻano he ʻano mea hou, ua komo mālie i ke kahua o ka ʻike kanaka i nā makahiki i hala.