The successful selection of bonding conditions for hot melt adhesives depends on melt morphology and rheological properties. Rheological properties were determined for model poly(ethylene-co-vinylacetate) hot melt adhesives. T-Peel fracture energies of joints consisting of two polypropylene films bonded with these adhesives were determined. Rheological data suggest that the EVA and its blends form homogeneous melts. Tackifiers and wax lower melt viscosity and elasticity but increase the activation energy for melt flow. Adhesives with higher melt activation energy, as well as lower elasticity and viscosity, show little dependence of peel strength on bonding temperature and require little time to reach the equilibrium bond strength. The equilibrium T-Peel strengths of adhesives containing wax are almost independent of bonding temperature. This may result from the existence of a weak boundary layer of wax or to their high flowability.