I'm trying out some foraged sources of tannins for wood staining since I'm a beginner and want to make a draught board using materials I can find in my local woodland. I know that mixing tannins with a vinegar or rust solution can give me a range of dark colors, and sometimes even bluish shades. My draught board is made from white oak, so just using an iron salt wash won't cut it. Has anyone experimented with natural sources like oak bark, walnut husks, acorns, or green oak leaves? I can't find a solid reference listing the most concentrated sources, and since it's still early for oak galls, I'm hoping for some insights. I'm located in Britain. Thanks a bunch!
1 Answer
I usually fume my white oak with ammonia, and the results are fantastic! After that, I apply boiled linseed oil, and the finish is just gorgeous. You’re right about the tannins; white oak has less, but fuming can really enhance the natural color. It gives a darker tone, really deep and rich, sometimes almost black!
Thanks for the tip, WoodCrafter92! Is the ammonia actually reacting with the tannins in the oak? I was under the impression that white oak might not have enough. What kind of shades are you getting?