Nws yog ib puag ncig tus phooj ywg ob-tiv thaiv polymer hloov cement waterproof khoom.Ib feem ntawm cov kua yog cov txheej tsis muaj dej tsis muaj dej uas muaj cov khoom siv siab polymer thiab ntau yam khoom ntxiv, uas muaj cov adhesion siab, yooj, mildew kuj thiab hnav tsis kam;Cov hmoov yog tsim los ntawm cov cement zoo, quartz xuab zeb thiab cov khoom siv tshwj xeeb, Tom qab ntsib dej, cov tshuaj tiv thaiv tshwm sim, infiltrating rau hauv cov qauv, thiab tsim cov siv lead ua, uas tsis tsuas yog thaiv cov dej hauv txhua qhov kev qhia, tab sis kuj ntxiv dag zog rau cov qauv thiab ua kom nws lub neej ntev.