Zinsser ShieldZ Clear wall size is a fast drying, ready-to use acrylic sealer and sizing for preparing painted and glossy surfaces for wallcovering including hard-to-stick surfaces such as existing vinyl wallcovering and paneling. It provides a uniform sealed surface which makes wallpaper easier to position while improving adhesion.Prepares all painted or glossy surfaces for wallpaper or bordersAdheres to vinyl, paneling and other hard-to-stick-to surfacesMakes positioning easier and promotes excellent adhesionEconomical, enough for one large roomTintable to hide seamsFast drying, hang in only 2 hrLow odor, easy water cleanupSafe, water cleanup