Best glue to use

[Diggydude]

Hello,

I've successfully re-fretted my kit's fretboard and have filed the edges pretty flush with the wood. Some of the slots were cut too deep on the edges and I'd like to fill them with some saw dust and glue. I've done this on the fretboard to fill some small holes and I used super glue for that. These holes are deeper though so I'm not so sure runny super glue is the way to go.

Which glue should I use?

I'm thinking standard wood glue as it's thicker and it's not going into an important joint but how would this work with a tru-oil finish over the top?

Thanks

[McCreed]

I use Timbermate on my fret slot ends.

Ebony for rosewood boards. "Natural" for maple. The Natural can be tinted, or you can stain right over it if you're use a staining the neck.
The stain can go darker on the Timbermate than it does on the maple, but it looks fine IMO. Ebony filler will near invisible on rosewood though.

I not had any issues with any clear coat (ac lacquer, poly, tru-oil) over the filled slot ends either.

Some do the glue thing if that's what you want to do, so I'm sure someone will chime in will their recipe.

[Diggydude]

That sounds like a very good idea with the timbermate, the frets don't need any glue to hold them in so timbermate should be good.

It does mean a trip to the big green shed though... what a shame

[Simon Barden]

Just a suggestion as I‘ve never tried it, and it probably isn’t necessary; but a drop of thin CA over the top of the Timbermate should make certain it stays firmly in place and doesn’t decide to drop out inna few years time. I can’t see it doing any harm and it should also (in my mind) seal the surface of the Timbermate and help prevent the finish sinking in to it over time.