I-alumina ecwebezelayo iyinto ebalulekile yokusetshenziswa kwezinto zobumba ezisebenzayo. I-powder ye-alumina ecwebezelayo engu-xz-L20, usayizi wezinhlayiya ezingu-100 nm, umbala omhlophe, okuqukethwe okuqinile okungu-99%. Ingangezwa kuma-resin ahlukahlukene asekelwe emanzini, ngaphakathi kwama-resin asekelwe ku-oyili, izinyibilikisi kanye nerabha ezingeni lokwengeza elingu-3%-5%, okungathuthukisa kakhulu ubulukhuni bento kuze kufike ku-6-8H noma ngaphezulu.
I-Grain Q-A1203, enobuso bayo obuphansi bamakhemikhali kanye nokumelana nokushisa okuphezulu, ayiyona i-alumina eyomile esebenzayo, futhi ayinawo umsebenzi wokulungisa. Inokumelana nokushisa okuqinile, ukwakheka okuhle, isigaba sekristalu esizinzile, ubulukhuni obuphezulu kanye nokuqina okuhle kobukhulu, futhi ingasetshenziswa kabanzi ekuqiniseni nasekuqiniseni amapulasitiki ahlukahlukene, irabha, izinto zobumba, izinto eziphikisayo kanye neminye imikhiqizo, ikakhulukazi ukuthuthukisa ukujiya, ukuqeda, ukukhathala okushisa nokubanda, ukuqina kokuphuka, ukumelana kokukhukhuleka kwe-ceramics kanye nokumelana nokuguguleka kwezinto ze-polymer.