: Does anyone have the ratio of wood flour to mixed resin that has worked well
: as an adhesive?

You can mix it with so much wood flour that it's the consistency of fresh ground peanut butter. And, there's no strength penalty for doing so. It takes that much stiffness to defy gravity. I usually make it pretty thick. Make it the consistency of mayonaise if you need it to settle-in a bit. Follow the directions in your kit. Best practice for adhesive is to coat both surfaces with unthickened epoxy first. Then thicken to desired stiffness and reapply. The thickener serves to reduce weight and keep the resin from oozing out of the joint and onto the floor.