01 Polyvinyl barasa (PVA) Wanwei
Polyvinyl barasa wani abu ne na halitta tare da tsarin sinadarai na [C2H4O] n. kamannin sa fari flake ne, mai sheki ko foda mai kauri da rashin ɗanɗano. Mai narkewa a cikin ruwa, dan kadan mai narkewa a dimethyl sulfoxide, wanda ba a iya narkewa a cikin man fetur, kerosene, man kayan lambu, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, da dai sauransu Polyvinyl barasa wani muhimmin sinadari ne albarkatun kasa, wanda Ana amfani da shi don kera polyvinyl acetal, bututun mai jure bututu da vinyl, wakili na masana'anta, emulsifier, murfin takarda, m, manne, da sauransu.