All of our films come with the adhesives already on them. There is a clear protective liner which must be removed and discarded before installation of the material. Water-activated adhesives are dry to the touch when the protective liner is removed, not tacky or sticky. To activate the adhesive, you must get it wet with a solution of soapy water. This allows you to position and handle the film easily in the installation process. Most of the residential and commercial films we sell use water-activated adhesives. Pressure-sensitive adhesive is sticky to the touch when you remove the clear liner. Like the dry adhesive, however, you must still get it wet with mounting solution prior to installation.