Reply by OSU55

Short of infusion, nothing. About the best for the hobbyist is poly. Thin regular ob poly, like minwax, 1:1 with ms, flood on the surface for 10 min, keep it wet, then wipe off, repeat after it dries. This allows the finish to soak in as far as its going to. Add coats with the desired method and film thickness. The wood fibers below the finish are still soft and will fail creating a dent if something hits it hard enough. Arm r seal is 1/2 the solids of mw, so no need to thin it.