Masking zaj duab xis, yog ib yam khoom siv vaj tse, feem ntau yog siv hauv tsheb, nkoj, tsheb ciav hlau, tsheb tavxij, rooj tog, thiab lwm yam khoom xws li cov tshuaj tsuag pleev xim rau hauv cov xim pleev xim, txheej thaiv txheej thiab sab hauv tsev kho kom zoo nkauj, cov khoom muab faib ua qhov kub thiab txias ob chav. (raws li cov txheej txheem tsim khoom tom qab txau cov xim ntawm cov lacquer uas ci ib puag ncig). Ua kom muaj txiaj ntsig zoo ntawm kev tsim khoom, txuag cov xim pleev xim nrog cov ntawv xov xwm khib nyiab tuaj yeem txhim kho ua ntej xim.