Abstract: A continuous process is provided for preparing a solid gel resin selected from resorcinol-formaldehyde gel resins, phenol-formaldehyde gel resins, and phenol-resorcinol-formaldehyde gel resins, using an extruder having at least one feed zone with a first temperature and at least one reaction zone with a second temperature that is higher than the first temperature. The process comprises steps of adding ingredients to the extruder at the feed zone, mixing the ingredients under heat to effectuate reaction between the ingredients to produce a liquid product exiting the extruder, and converting the liquid product exiting the extruder to the solid gel resin. A solid gel resin produced by the continuous process is also provided.