Wicking (capillary) theory is based on a range of functional properties shown below in a tutorial format or as individual properties for review. Porous materials that wick fluids such as water are referred to as hydrophilic materials. Conversely, porous materials that are capable of resisting the entry of water into their porous structure are referred to as hydrophobic materials. Analyzing the feasibility of your proposed wicking solution begins with a thorough consideration of the functional parameters. To better understand the science behind a porous material's ability to wick (or not wick) a fluid, launch the Wicking (Capillary Flow) tutorial or one of the individual properties below to learn more.