DIF, Gallon, Ready To Use Gel Wallpaper Stripper, Removes The Mess From Removing Wallpaper, Easy Application, Non-Drip Gel Clings To Vertical Surfaces, Extended Action Enzyme Formula Stays Wet Longer and Penetrates Deeply To Remove The Most Difficult Wallpapers, Dissolves The Most Stubborn Adhesives Including Clay Based, Non-Toxic, Odorless, Ideal For Stripping Wallpaper In Occupied Areas.