Preserving beetle tunnels in Ash

I’ve done it several ways depending on the project and the look desired. On some, I’ll dig out the worm excrement and fill the hole with epoxy – sometimes adding coloring, sometimes sawdust, sometimes just leaving it neat. On others, I’ve stabilized them with a thinned out polyurethane. I know others that will do the same with thinned CA glue. They all seem to work fine.

Cheers,
Brad

PS: The worst thing is when turning and instead of hitting the excrement filled hole, actually hitting the larva! Nothing like getting bug guts splattered all over the place!

-- Brad in FL - In Dog I trust... everything else is questionable

I have a few scrap pieces, I’ll try CA glue to see how that goes and compare it to the epoxy before applying on the final piece.

I have a bunch of beetle chewed ash. Sometimes the epoxy keeps going and going into the little tunnels. As far as sealing up the poo or whatever it is, CA will work fine.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

Those frass filled tunnels will soak up a LOT of finish but you can eventually finish them with poly.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

Uhhhh, its NOT ‘sawdust’, its beetle crap …

Dig it out, fill with sawdust mixed with carpenters yellow glue & dry. Repeat as required.

I like leaving them unfilled, adds a 3rd dimension to the surface.

M

-- Madmark - [email protected] Wiretreefarm.com

I usually start with removing all the frass with compressed air, a rubber tipped blow gun (& an old toothbrush) works best as you can better pressurize the tunnels to get out all the crap and any remaining larva. After that I like to lightly sand the outside to soften the edges and reduce the chance of any small edge being broken off. As for filling the tunnels, I like use tinted epoxy & to keep it from flowing to china, I’ll stuff a small piece of rolled and compressed paper towel in just far enough to be sure it’ll be covered.

-- "Lack of effort will result in failure with amazing predictability" - Me

After doing some tests with CA and Epoxy, sanding and then putting on my finish I decided to clean out the tunnels and use CA to fill them. I like the look of the clear visible tunnel in this project. The frass darkened too much after applying CA/Epoxy for my liking.

Keep in mind, sometimes the beetles are still alive.
I got a call-back, on a set of bookcases. Kept finding ‘sawdust’ on the top under the face-frame.
Had to replace the frame. It was a clear coat finish, so apparently it didn’t kill the infestation.
Pretty surprising, and I’ve only run into it the one time. Especially considering it was kiln-dried.

This was in a production-shop environment, so there wasn’t quite the attention to detail
being advocated by your other comments. If you go to that much effort, you should be good.

Ern