① Polyurethane waterproof txheej: feem ntau yog ua los ntawm polyurethane thiab thee tar. Cov khoom no tsis tau teev nyob rau hauv qeb txij li nws tau raug txwv nyob rau hauv Suav teb xyoo 2000 vim muaj cov toxicity ntawm cov roj av volatile thiab nyuaj rau tshem tawm.
Tseem nyob rau hauv kev muag khoom ntawm polyurethane waterproof txheej, thee tar nrog asphalt es tsis txhob, tab sis nyob rau hauv kev siv ntawm no txheej, feem ntau muaj toluene, xylene, thiab lwm yam organic solvents rau dilute, yog li nws kuj muaj toxicity. Muaj nyob rau hauv chav kawm ntawm cov khoom siv polymer los yog cov khoom siv dej tsis zoo.
②SBS hloov asphalt waterproof txheej: siv roj av asphalt raws li cov khoom siv hauv paus, SBS ua tus hloov kho, thiab ntxiv ntau yam khoom siv los npaj cov txheej txheem txias dej, nrog kev ua haujlwm tsis zoo, tsis tshua muaj kub hloov, siab elongation, yooj yim siv, thiab Lwm cov yam ntxwv ntawm kev muaj peev xwm zoo hloov mus rau lub ru tsev deformation.
(3) Polymer-based waterproof txheej: muaj ntau yam dej-raws li polymer hluavtaws emulsions thiab tov nrog ntau yam additives ntawm high-zoo cement, polymer (resin) yooj, thiab cement rigidity rau hauv ib qho, kev ua tau zoo hauv impermeability thiab ruaj khov. Kev tsim kho yooj yim, tsis tshua muaj nqi, lub sijhawm luv luv, thiab kev tiv thaiv ib puag ncig tsis muaj tshuaj lom, yog lub hauv paus ntawm kev ua lag luam waterproof txheej.