Dissolving quickly in cold water, after mix with cold water, it will be turn blue, after dry, it will be no color. wallpaper adhesive-Lanjing 1.After mix around cold water, it will trun blue. After dry, it will be no color 2.Strong viscosityWallpaper adhesive- blue color, you can see the glue.1.Dissolving quickly in cold water, after mix with cold water, it will be turn blue, after dry, it will ...