It has strong paste, non-toxic, unti- mildew, made of potato, environment friendly product. Can easy mixing and quick dissolve in cold water, suitable for various different kinds of wallpaper. Usage: It requires wall neat clean, dry, no solid, no hole, strong and no dust. First put the powder into percent clean water, churn half minute make sure the powder completely absorb, after three minute then churn. Use the brush to paste mixed glue on finished cutting wallpaper, full of the surrounding, fold and stress two sides five or six minutes so that the paste completely infiltrate the back of paper then it can paste on wall. First should put the wallpaper's top, use drawknife from up and down, from middle to two sides extrude air bubble. Use wet towel take the extra paste out of the surface wallpaper. We offer any kinds of packing to client choice