You want resistant, and are not concerned about pretty?
I have one stock where I stripped it to death, lyed it and everything else I could think of to suck it bone dry. Then I mixed up a nice big batch of slow glass epoxy and heat-gunned it into the starved wood, endgrain and all. I was shocked at how much it soaked up before the cure started.
Sanded it, one more skim coat and sanded to a 200 grit then steel wool, then wipe with a tack rag. Done. Not pretty or showy, but maybe it was just the wood. But I sure got stable.
