Polyvinyl alcohol (PVA) yog ib qhov tseem ceeb uas siv nyiaj sov los zoo muaj kev siv ntau hauv ntau qhov chaw, xws li phau, kev tsim kho, thiab kev saib xyuas neeg. Hauv cheeb tsam phau, PVA feem ntau siv los ua qhov chaw ntxig, pab ntau tshaj thiab ua rau phau smooth hauv qab chaw tsim. Qhov tseem ceeb ntawm nws yog tiam sis roj yaig ua rau nws zoo li ib qhov khoom tseem ceeb hauv kev ntxig thiab kev sib ntxiv uas siv hauv daim ntawv thiab cheeb tsam tsim kho. Hauv kev saib xyuas neeg, PVA siv los ntawm nws qhov tseem ceeb ntawm kev tiam roj yaig, pab nws siv hauv kev saib xyuas pob thiab kev saib xyuas neeg. Qhov tseem ceeb ntawm nws yog tias nws tuaj yeem sov los, yog li nws yog ib qhov kev xaiv zoo tshaj hauv kev tsim kho.