Current Air Force coatings include urethane topcoat-chromate pigmented epoxy primer systems with the topcoat functioning as a barrier against the environment and the chromate primer providing adhesion between the topcoat and the substrate as well as passivation of the AA 2024-T3 substrate. Experimental results demonstrating the water uptake and water loss associated with a non-pigment epoxy coating and the Air Force chromate pigmented primer are presented. The experimental procedure involved exposure of the coatings to NaCl and room temperature ionic liquid media. The latter allowed monitoring of the coating being dried by the hydrophilic and conductive ionic liquid. In-situ single-frequency impedance measurements were used to monitor the evolution of capacitance changes associated with water uptake/loss while electrochemical impedance spectroscopic measurements were used to determine the coating properties after the immersion period. The capacitance evolution associated with the chromate primer was anomalous with a 50 factor increase during immersion in NaCl as compared to less than a 2 factor increase for the non-pigmented epoxy. Large changes in coating capacitance have been reported for organic coatings during aqueous immersion, however there has been limited effort to determine this anomalous result. The electrochemical and gravimetric results presented were used to propose the hypothesis that the large increase in capacitance of the chromate primers was due to the ingress of an electrolytic species. This hypothesis represents a work in progress upon which more sophisticated versions will be developed.