Kev saib xyuas cov khoom khaws cia pib nrog kev tu txhua hnub. Txawm hais tias yog ua los ntawm cov yas, ntaub, ntoo, lossis hlau, cov plua plav thiab cov stains yuav tsum tau muab ntxuav kom tsis tu ncua kom tiv thaiv kom ntev li - lub sij hawm tsub zuj zuj thiab ua kom muaj txiaj ntsig zoo. Feem ntau, ib daim ntaub mos muag lossis daim ntaub ntub dej me ntsis yog txaus rau kev ntxuav. Rau crevices thiab ces kaum, ib tug me me txhuam yuav siv tau. Tsis txhob siv cov kua qaub uas muaj zog los yog alkalis lossis cov cuab yeej abrasive los tiv thaiv kev puas tsuaj rau cov khoom siv los yog txheej.
Qhov thib ob, tsim nyog load-cov kabmob thiab kev tiv thaiv cov qauv yog qhov tseem ceeb. Cov khoom khaws cia feem ntau muaj qhov hnyav tsawg -cov kabmob muaj peev xwm. Overloading lawv rau lub sijhawm ntev tuaj yeem ua rau deformation, tawg, lossis xoob. Piv txwv li, cov thawv ntim khoom yuav tsum tsis txhob muab cov khoom hnyav hnyav, cov tub rau khoom yuav tsum tau tiv thaiv los ntawm kev rub thiab quab yuam, thiab cov hlau los yog yas pob qij txha yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev ntxhov siab ntau dhau. Thaum tsiv los yog rov kho cov khoom, tuav lawv maj mam kom txo qis kev puas tsuaj los ntawm kev sib tsoo.
Tsis tas li ntawd, kev tswj hwm ib puag ncig thiab kev tshuaj xyuas tsis tu ncua yog qhov tseem ceeb. Cov khoom khaws cia yuav tsum tau muab cia rau hauv qhov chaw qhuav, zoo - qhov cua qhov chaw kom tiv thaiv kev laus, pwm, los yog xeb los ntawm dampness lossis kub kub. Rau cov ntaub ntawv khaws cia cov khoom, them nyiaj tshwj xeeb rau kev tiv thaiv kab mob thiab kab tsuag; rau cov khoom siv hlau, tsom rau kev tiv thaiv xeb, thiab ua kom yooj yim tiv thaiv xeb yog tias tsim nyog. Nyob rau tib lub sijhawm, tsis tu ncua xyuas cov khoom puas tsuaj, deformation, los yog xoob kev sib txuas, thiab kho lossis hloov lawv tam sim ntawd kom ntev lawv lub neej tag nrho thiab tswj kev ua haujlwm zoo.