Polyvinyl alcohol (PVA) yog ib qhov tseem ceeb rau kev tsim kho tso, rooj kheub thiab duab. Qhov chaw tso tseg txaus siab hauv dej thiab qhov txaus siab ntawm kev tsim cov duab meej thiab zoo tso cai rau nws los zoo rau kev tsim kho cov khoom siv tsha yuav kom phem tsis ntau. Hauv kev lag luam tsim pob, PVA raug siv los ua tus neeg sau npe kom txhim kho kev tsim thiab kev nyab xeeb ntawm cov pob. Nyob hauv kev tsim tsev, nws muaj feem tseem ceeb rau kev txhim kho kev ua haujlwm ntawm cov mortar, tile thiab lwm yam khoom uas muaj cement.