A clarification to the post I just made. The ammonia used to bend the oak was gaseous ammonia cooled with liquid nitrogen until it was liquid. That is why it was so easy for the wood to hold its shape. As soon as the wood was bent, the ammonia gas vaporized and left the wood in the shape it was bent into. The ammonia liquid you buy in the store is not the same. if you use that kind of ammonia, it will not be as effective, but it still should work. It will take a while for the wood to dry.

Terry Brown