Anti-scratch zaj duab xis, tseem hu ua zaj duab xis-resistant los yog txheej, yog txheej tiv thaiv siv rau ntawm qhov chaw, xws li cov khoom siv hluav taws xob cov ntxaij vab tshaus, cov tsom iav qhov muag, lub tsheb sab hauv, lossis lwm yam khoom siv tsis zoo. Cov yeeb yaj kiab no yog tsim los tiv thaiv thiab txo qhov khawb, puas, thiab cuam tshuam me me, pab tswj cov tsos thiab kev ua haujlwm ntawm qhov chaw hauv qab. Feem ntau yog tsim los ntawm cov khoom siv ruaj khov xws li polymers lossis cov txheej tshwj xeeb, cov yeeb yaj kiab los tiv thaiv khawb muab ib qib ntxiv ntawm kev tiv thaiv kev hnav thiab tsim kua muag txhua hnub, ncua lub neej ntev thiab khaws cia qhov zoo nkauj ntawm cov khoom npog.