“…Water is intermediately wetting to epoxy (contact angle ranges from 57°to 65°, Geller et al, (1996)), which somewhat reduces capillary forces and trapping of the non-wetting phase compared to strongly water-wet systems. Most common aquifer minerals, such as quartz, carbonates and sulfates, are strongly water-wet (Demond and Lindner, 1993); however, natural hydrophobic organic materials and anthropogenic organic compounds on the mineral surface may create conditions of neutral nettability.…”