The use of multi-material designs is becoming increasingly important in the field of automotive body-in-white. Adhesive bonding has become standard for multi-material structures due to its ability to join dissimilar materials. Damage to the adhesive layer may occur during the cathodic dip coating process. In multi-material designs, differing thermal expansion of joining materials can stress the adhesive layer, potentially causing damage or failure. In addition to damage to the adhesive layer resulting from the disparate thermal expansion coefficients of the joining part materials, the adhesive layer can also be damaged by the phenomenon of viscous fingering. This effect occurs in the adhesive joint when the gel point of the adhesive has not yet been reached and the adhesive is loaded in normal direction. This leads to a diminished cross-section of the bondline, which reduces the mechanical properties of the adhesive joint. In order to characterize the shear properties of adhesive layers with viscous fingering, Linear-Butt-Bonded (LBB) and Tapered-End-Notched-Flexure (TENF) specimens are used in this work. This enables the definition of characteristic values such as maximum stress, modulus and the energy release rate under Mode-II loading as a function of the elongation of the adhesive layer in its viscous state. These characteristic values are thus available for the parametrization of a cohesive zone model for the simulation.