Galasi lamchenga
Galasi loumbidwa ndi mchenga limapangidwa ndi madzi osakanikirana ndi emery ndikupopera pamwamba pagalasi pamphamvu kwambiri.
Iyi ndi njira yopukutira. Kuphatikizapo galasi lophulika ndi galasi losemedwa ndi mchenga, ndi kapu yamagalasi yomwe imapangidwa kukhala yopingasa kapena yosakanikirana ndi galasi ndi makina osanja okhazikika a sandblasting kapena makina owongoka a sandblasting. Mitundu imatha kuphatikizidwanso pamtundu wotchedwa "jet-painting". "Galasi", kapena imagwiritsidwa ntchito molumikizana ndi makina osema makompyuta, chosema chozama komanso chosema pang'ono, ndikupanga zojambula zokongola, zonga moyo. Galasi lokhala ndi mchenga limagwiritsa ntchito ukadaulo wapamwamba kwambiri kuwononga pamwamba pagalasi lathyathyathya, potero limapanga matte osunthika, omwe amakhala osawoneka bwino. Ntchitoyi imafanana ndi galasi losungunuka, kupatula kuti galasi losungunuka limasinthidwa kukhala mchenga. Pakukongoletsa chipinda chochezera, chimagwiritsidwa ntchito m'malo omwe sanatchulidwe. Mwachitsanzo, pakati pa chipinda chodyera ndi chipinda chochezera, chinsalu chokongola chimatha kupangidwa ndi galasi lowotcha ndi mchenga.