Water-based adhesives are usually free of solvents. They consist of polymer resins that are diluted with water to make the adhesive. In contrast, solvent-based adhesives contain chemical solvents that are needed to dissolve the polymer and make the adhesive.
Water-based adhesives have a number of advantages over solvent-based adhesives, including their environmental friendliness and safety in use. They are also easier to remove and usually less expensive. However, they sometimes have a lower adhesive strength than solvent-based adhesives and a longer drying time. It is therefore important to choose the right adhesive for the specific application.