Look into the polyethylene glycol products.
As pointed out, the problem is, you need it dry and drying is its enemy.
If you can replace moisture that is lost as it's lost, you win. That's where the glycol can help. However, it can fight with some finishes.
You can also experiment. Thin some motor oil and apply it, as the wood dries. Be religious about it. The oil swells the wood, just as water does.
Start out with about a 30% thin. When the wood seems to have stabilized, seal it with a poly.
The reason I have what you want is, I never lent it out before.
Scraps are a myth.
Last edited by Dejure; 09-07-2017 at 02:13 AM.