Brian D wrote:

Nobody mentioned it, so I will. If you are using epoxy, be aware that white
oak can sometimes work, sometimes not. I've heard a lot of arguments as to
why, but I've not seen a lot of answers for how to guarantee that epoxy will
stick to white oak as well as it sticks to other types of woods.

I suspect that the problem lies in the tannic acid in the wood. I've been
working with green red oak lately, which discolors tool beds and cutting tools,
and the wood ends up with black streaks where you cut it with steel tools or run
it across an iron tool bed. Anyway, the point is that epoxy is neutralized by
acids, which is why vinegar is used to clean up uncured epoxy spills. It
neutralizes the epoxy so it will not cure, making it easier to remove. I suspect
that the same thing is happening with the tannic acid in oak.

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Regards

Brian