Mu kukonza magalasi amakono, kupeza mawonekedwe ofanana komanso okonzedwa bwino ndikofunikira kwambiri pa ntchito yokongola komanso yogwira ntchito. Alumina yoyera yosakanikirana ndi grit 180 yakhala ngati chida chodziwika bwino chopangira mchenga wagalasi chifukwa cha kuthekera kwake kodula bwino komanso kugawa tinthu tating'onoting'ono.
Ndi kukula kwa tinthu tating'onoting'ono ta pafupifupi ma microns 80–90, alumina yoyera yosakanikirana ya grit 180 imapereka mphamvu yokhazikika yozizira popanda kuwononga kwambiri pamwamba. Kuyera kwake kwakukulu (≥99% Al₂O₃) komanso chitsulo chochepa kumaonetsetsa kuti palibe kusintha kwa mtundu kapena kuipitsidwa komwe kumachitika panthawi yophulika, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pagalasi la zomangamanga, zokongoletsera, komanso lapamwamba kwambiri.
Kapangidwe ka tinthu tating'onoting'ono kamene kamakhala ndi mawonekedwe owongolera, zomwe zimathandiza ogwiritsa ntchito kuti azitha kupumula bwino komanso mopanda mawanga. Poyerekeza ndi ma abrasives ovuta, grit 180 imapereka mawonekedwe abwino kwambiri, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito monga magalasi, malo osambira, magawo, ndi kukongoletsa kwa logo molondola.
Kuphatikiza apo, kuuma kwake kwakukulu (Mohs 9) komanso kukana kutopa kwambiri zimathandiza kuti ntchito yake ikhale yayitali komanso kuti igwiritsidwenso ntchito, zomwe zimachepetsa ndalama zonse zogwirira ntchito. Ikagwiritsidwa ntchito bwino - nthawi zambiri pakakhala kupsinjika pakati pa 0.4–0.7 MPa ndi ngodya zoyenera zophulika - alumina yoyera yolumikizidwa ndi grit 180 imatsimikizira kugwira ntchito bwino komanso mtundu wake.
Pamene kufunikira kwa magalasi apamwamba kukupitilira kukula, alumina yoyera yopangidwa ndi grit 180 ikadali yankho lodalirika kwa opanga omwe akufuna kulondola, kusinthasintha, komanso magwiridwe antchito otsika mtengo pantchito zophulitsa mchenga.