I am building a small case piece from SYP that spent the past 100+ years as factory rafters in Brooklyn. The wood is so baked dry that the sap is set to the point of almost being amber but the content is high enough that you can see orange light through 1/4″ thick cutoffs.
Stock is 1 3/8″ thick and I’m using a combo of dovetail / wedged through M&T construction. What experiences have you had using Yellow, epoxy, polyurethane, or urea-formaldahyde glues on this type of “waxy-surface” lumber? I am trying to narrow the candidates for testing.
Second photo is a flashlight standing on top of the stock shining into it.