Frog Restoration Advice in The Pegbox Posted October 13 · Report reply To fill the chip and not have it as shiny as a repair using ebony dust (which I never use) and ca glue, I use an ebony crumble. The crumble I use with good results is made from the shavings left over from shaping a peg . Over fill the chip with ebony crumble, cover it with a bit of cling wrap, apply finger pressure to the wrap and crumble and soak it with ca glue. Now you can file the repair to shape and finish the repair. With crumble you get more wood product in the chip and not as much ca glue as you get using dust which makes it shine. The crack can be glued together by pressing it together and using a good quality ca glue after removing the pearl slide. For both repairs clean the chip and crack with acetone to remove any oils or waxes.