Abstract
A theory for the decay of the wet shear strength of adhesion has been proposed by formalizing the quantitative relation between wet shear strength of adhesion and moisture content. Theoretical values for the retention of wet shear strength of adhesion over time coincided with the experimental plottiugs. It has been clarified that the diffusion coefficient of water is larger at the interface than in the adhesives, and that moisture absorption is determined by the diffusion of water at the interface.
