Nrog txoj kev kawm tas mus li ntawm kev tshawb fawb thiab kev siv thev naus laus zis, ntau yam ntawm cov txheej dej tsis muaj txheej txheem yog nce zuj zus, tab sis tam sim no, polyurethane pleev xim dej tseem suav tias yog kev ua haujlwm zoo tshaj plaws hauv cov teb chaws thoob ntiaj teb. Tsawg kub tsis kam, siab tensile lub zog, loj elongation, hloov loj ntawm hardness thiab modulus, adhesion zoo, hnav tsis kam, roj tsis kam, corrosion tsis kam rau tshuaj lom neeg xov xwm, thiab lwm yam, yog siv dav hauv cov dej tsis haum hauv ntau thaj chaw.
Polyurethane waterproof txheej txheej tau tsim thiab siv nyob rau hauv Suav teb rau ntau tshaj 20 xyoo. Txij li thaum lub sijhawm "Thib Tsib-Tsib Lub Hom Phiaj Npaj", nws ib txwm yog cov khoom lag luam tau txhawb los ntawm Ministry of Construction rau kev tsim kho hauv kev lag luam. Txhawm rau kom tau raws li kev ua lag luam kev lag luam polyurethane waterproof txheej thiab txhim kho txheej txheej txheej txheej txheej txheej dej tsis zoo, Beijing Dongfang Yuhong Waterproof Engineering Co., Ltd. tau tsim ib txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej ntuag dej tsis ua haujlwm nrog cov qes qis, nruab nrab thiab qib siab. Cov kab ntau lawm tau tsim tawm ze li ntawm 10,000 tons ntawm ib leeg-thiab ob lub sib xyaw polyurethanes thiab cov tshuaj tsuag hom polyurea txheej vim nws tau muab tso rau hauv ntau lawm. Cov khoom lag luam tau siv hauv chav ua noj thiab chav dej thiab chav pw, chaw so, chaw da dej, chaw ua luam dej phwj, chaw nres tsheb hauv av, thiab txoj kev kub ceev hauv cov tsev tsim khoom thiab chaw haujlwm. Kev ntsuas dej nyob hauv kev tsheb nqaj hlau thiab lwm thaj chaw thiab seem. Tus sau tswj hwm kev tsim kho cov kab ntau lawm, thiab yog tus saib xyuas cov khoom lag luam vim cov kab ntau lawm tau muab tso rau hauv ntau lawm. Ob peb xyoos ntawm kev tsim tawm tau ua pov thawj tias cov kab ntau lawm muaj qhov ua tiav, kev ua haujlwm rau kev tsim ntau yam khoom, cov cuab yeej tseem ceeb thiab kev tswj hwm kom ua tau raws li cov kev tsim khoom ntawm cov txheej txheem txheej siab. Kab lus no hais txog cov kab tsim kev tsim qauv, kev ua haujlwm raug mob, thiab cov ntsiab lus tseem ceeb uas cuam tshuam rau kev tsim xim thiab kev ua tiav.