Gypsum raws li plaster feem ntau hu ua pre-mixed qhuav mortar uas feem ntau muaj gypsum raws li ib tug binder.Sib tov nrog dej ntawm qhov chaw ua haujlwm thiab siv rau kev ua tiav ntawm ntau cov phab ntsa sab hauv - cib, pob zeb, ALC thaiv thiab lwm yam.
Hydroxy Propyl Methyl Cellulose (HPMC) yog ib qho tseem ceeb ntxiv rau kev ua haujlwm zoo hauv txhua daim ntawv thov ntawm gypsum plaster.