Recently, the water-based adhesives are preferred to the solvent-based adhesives because of environmental problems. In order for the water-based adhesives to be commercially used, their properties such as heat-resistance, water-resistance adhesion must be enhanced to the level of solvent-based ones. Although drying and aging procedures significantly affect the performance of adhesive properties, only few studies on this subject have been reported. We investigated the effect of drying and aging temperature, coating thickness, and relative humidity on the tack, the peel strengrh, the creep resistance of water-based acrylic adhesives. Acrylic emulsion of solutionswew prepared by polymerization of methacylic acid (MAA), 2-ethylhexyl acrylate (2-EHA), butyl acrylate (BA) monomers. With increasing drying time at constant temperature, the tack and the peel strength decreased, whereas the cteep resistance increased. Aging at higher humidity(60%RH) resulted in more change in adhesive properties than at lower humidity(20%). With increasing coating thickness, the tack amd the peel sterngth increased, whereas the creep resistance decreased.