... price,fast deliverPVA powder1788,Polyvinyl Alcohol 1788 PVA property:Name: polyvinyl alcohol ,PVA,PVOHMF: [C2H4O]nAppearance: white granular or ... , they ser off chemical reacrions, which make the resin more flexile, so that highen fabric’s crisp property ... , butyraldehyde or other aldehydes or under acid catalyst generate PVA acetalized devivative, further improve its waterproof and adhesive properties ...