You bet! Use a hair dryer to warm the area with the residue. The wax should melt right into the leather. My wife's got Frye boots and sno seal works great for keeping them conditioned and safe from water. You can also place the boots in front of a space heater so they get warm (not hot!). After treatment, my boots get a residue in the area between the uppers and the sole, where the seam is; if I still get some after heating the area, I just brush it off with a stiff brush. Good luck!