Filling a gouge in an ebony fingerboard

[Cboss]

Can anyone recommend a good material for this?

Something that would fill a small cavity or gouge on an ebony fingerboard that could be worked/sanded flat and finished

[Dave Scepter]

Find/buy a small chunk of ebony "local guitar store may have a spare ebony tuning peg laying around"... make a pile of powder buy sanding it over sandpaper... clean area thoroughly, fill hole, level with a razor blade, use/drip "thin" CA glue... sand to level... it may take a couple/few tries to build up area 

[Hackubus]

There's also this stuff.

https://www.stewmac.com/luthier-tools-and-supplies/supplies/finishing-supplies/fillers-and-putties/gluboost-fill-n-finish/

Fill 'n Finish Original Black is perfect for black peghead and ebony bridge and fingerboard repairs. Fill n' Finish Black is deliberately semi-transparent for ultimate flexibility. Add MasterTint Black for more density of color.

[Disturber]

Gum?

[Hbom]

Worked in gun shops as a kid, we would fix dings and gauges in gunstocks with burned in shellac. 

 BURN-IN STICKS | Page 1 of 1 (shellac.net)