Join Date: Sep 2007
Location: Baxter, Tennessee
Most of the time they will show. Sometimes you can get lucky and close the crack if the bowl is thin and it won't show but 90 percent of the time the crack will show. If it's a large crack I find the powdered sawdust looks like you packed it with pressed wood. Not a good look. In those cases I prefer to highlight the crack by using colored epoxy. I use black the most but sometimes will use brown to match a knot if that's where the crack is. I find a darker color for the crack usually works better than light.
I use powdered tempera paint or analine dye to color the epoxy. For smaller cracks you can pack a contrasting wood or even coffee grounds in the crack. Wet it with thin CA and then fill any spaces with medium CA.
On really large cracks I prefer to just leave them. I carve the edges so they are cleaner and then burn them with a micro torch. I sand away the burn that always bleeds over to the outside of the bowl. For really big cracks where I want to save the bowl and use it more as an art piece I patch the crack with a butterfly patch, usually of contrasting wood.