Originally Posted by
John K Jordan
Interesting. So the heartwood turned dark while the sapwood stayed white. I've never tried it. I'll have to try this the next time I turn something from black locust. I see Dave said the finish must be applied quickly after fuming, presumably to preserve the color.
I'm assuming any wood that has high tannin/tannic acid content that can be ebonized by treatment with iron/vinegar (acid) could also be affected by ammonia fuming, woods like oak, walnut, cherry, and mahogany. Is that right?
I read once of a built-in installation, oak, I think, where ammonia fuming saved the day. The article said they sealed and fumed the entire room overnight. If there is a health hazard from a small tent with ammonia it makes me wonder how they cleared the room the next day!
JKJ