Ngesikhathi kwakhiwa izimpawu zomgwaqo, kuyadingeka ukuthi kuqhunyiswe imfucumfucu efana nenhlabathi nesihlabathi endaweni yomgwaqo nge-high-pressure wind purifier ukuqinisekisa ukuthi umgwaqo awunazo izinhlayiya ezixekethile, uthuli, i-asphalt, uwoyela kanye nezinye imfucumfucu. ezithinta ikhwalithi yokumaka, futhi zilinde indawo yomgwaqo ukuthi yome.
Khona-ke, ngokwezidingo zomklamo wobunjiniyela, umshini wolayini osizayo ozenzakalelayo usetshenziswa esigabeni sokwakha esihlongozwayo futhi wengezwe ngokusebenza ngesandla ukuze ubeke umugqa wokusiza.
Ngemuva kwalokho, ngokwezidingo ezishiwo, umshini wokufafaza we-undercoat ongenawo umoya wokucindezela ophezulu usetshenziselwa ukufafaza uhlobo olufanayo nenani le-undercoat (i-primer) njengoba kuvunywe unjiniyela ophethe. Ngemuva kokuthi i-undercoat isomile ngokugcwele, ukumaka kwenziwa ngomshini wokumaka owenziwe ngokuzimela oshisayo noma umshini wokumaka owenziwe nge-hot-melt.
