Recently purchased a bunch of 6/4 black walnut to use for a long built-in counter-top… which will be about 115″ x 24.75. All the boards are pretty good, but I’m running into an issue with a knot in one of them. Specifically how soft part of the knot is…
If you look at the attached photo you’ll see there’s a dark and light side to the knot. The light side has the consistency of cork in the middle, getting progressively harder the farther out from the center you go. I used a needle to probe the knot (a needle can be pushed into the lighter part of the knot) and while depth varied it extends about 1/3″ into the piece.
How should I deal with this? I’d been planning to use either black epoxy or black CA with sawdust to blend the knot before staining the board. However, I’m now concerned about how soft that part of the knot is… it’s not soft enough that you can push your finger into it, but it is very slightly spongy to a hard press.
Is it fine to just seal this with black epoxy or black ca? Or do I need to actually dig out the softer stuff and then fill the whole knot with something? Note that flipping the board doesn’t really work… all of the boards (4) have one side that’s largely heart wood and one that’s sap, and the knot is on the heartwood side.
Thanks in advance for any advice!