Peter Breu replies: My favorite epoxy is the West System #655-K Plastic Boat Repair Kit. It is a two part thickened epoxy which works wonderfully in all woods I’ve used. It doesn’t run at all which is a huge benefit. While intended for plastics, I use it all the time for joinery and for repairs. Because it is thickened, joints cannot be as tight as one would use with traditional wood glues. It dries to an off white/yellow color so it is not suitable for a finish.