Polyvinyl Alcohol (PVA) yuav tsum tau khaws cia hauv txoj kev uas yuav tsum tau xav txog txhua yam xwm txheej ib puag ncig uas yuav cuam tshuam rau cov khoom. Polyvinyl Alcohol yuav tsum tau khaws cia hauv thaj chaw qhuav nrog qhov kub uas zoo tshaj plaws nyob nruab nrab 5 degrees Celsius thiab 25 degrees Celsius lossis 41 degrees Fahrenheit mus rau 77 degrees Fahrenheit. Tsis tas li ntawd, qhov noo yuav tsum tau tswj xyuas vim tias qhov noo ntau dhau yuav ua rau muaj kev sib sau thiab ua rau muaj kev puas tsuaj. Siv cov thawv tsis muaj huab cua kom tsis txhob muaj PVA los ntawm qhov noo thiab lwm yam impurities. Tsis tas li ntawd, tsis txhob tso PVA rau hnub ci vim nws yuav cuam tshuam rau qhov ruaj khov tshuaj ntawm polyvinyl alcohol. Kev ua raws li cov lus qhia no yuav ua kom PVA ua haujlwm rau ntau yam kev thov los ntawm kev thov hauv kev lag luam mus rau kev thov ntawm cov neeg siv.