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fixing crack(s) in ebony fingerboard

Discussion in 'Luthier's Corner' started by pnutz, Oct 15, 2017.


  1. pnutz

    pnutz Supporting Member

    hi,

    need to patch up / fill a crack in an ebony fingerboard. read online that ebony dust and super glue would do the trick. so does one mix the glue and ebony dust together and then apply that 'paste' to the fingerboard? or does one put the ebony dust in the crack and then fill it with the super glue?

    if you have any tricks, tips, or techniques to pass along, i'd appreciate it. thanks! :)
     
  2. MPU

    MPU

    Sep 21, 2004
    Valkeala Finland
    I put dust in the crack, then superglue. If you mix dust and superglue it will cure in seconds. There’s no time to apply the paste.
     
  3. pnutz

    pnutz Supporting Member

    so fill crack with ebony dust and apply glue.

    i'm sure some sanding will be involved to knock the super glue down. any suggestions on grit? definitely don't want to sand down the radius of the fingerboard. should i go light?
     
  4. MPU

    MPU

    Sep 21, 2004
    Valkeala Finland
    Use masking tape to mask the board so that only the crack is visible. Fill, let it cure and sand with fine (I’d use 400 with something hard as backing block) paper, then finish with fine synthetic steel wool on micromesh.
     
    mikewalker likes this.
  5. Also, if the crack is deep, fill about a third with dust, add a few drops of superglue, give it some time to cure, do the next third, repeat as needed.
     
  6. pnutz

    pnutz Supporting Member

    Just received my package from stewmac (super glue tinted black and hopefully enough ebony to grind to dust). Any last tips or tricks of the trade before I get to it? Was planning to start small first to see if I don’t mess things up. Thanks for the info and help!
     

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