The monitoring of bioelectric signals by electroencephalography (EEG) is a common procedure, which provides medical data required for clinical applications and research. Currently, the application of EEG lacks alternatives to commonly used electrodes, which have several limitations and problems. The work reported here is included in a broader project that aims to develop a new concept of electrode that will combine the advantage of both “wet” and “dry” electrodes, circumventing most of the disadvantages of those specific individual electrodes. The new electrode comprises a polymer wick which will promote a low impedance electrode-skin contact, by delivering a small amount of a moistener solution to that region, thus it will dispense the application of the usual gel paste used in conventional applications. Wicks are porous and hydrophilic structures that are commonly used to absorb and transport liquids. They are usually produced using the sintering process, where a cohesive material is formed through mass diffusion, which takes place between small particles of the powder polymer. In this work the sintering process was studied in order to identify the effect of the most relevant process parameters (pressure, temperature and time) on the morphology of the produced wicks. The study was performed for three different materials: PC, UHMWPE and PA 12, which were all grinded to produce particles having circa 0.5 mm in diameter. The microstructure of a wick material strongly affects its performance. To evaluate these properties the produced wicks were characterized using several tests, including permeability, sortivity, mechanical behavior, and open cell porous volume. In this study we conclude that the wicks made with amorphous materials, like PC, allowed to obtain the samples with the largest volume of open cell porosity and adequate mechanical strength and permeability.