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Thread: Black locust bowls

  1. #16
    Join Date
    Feb 2008
    Location
    E TN, near Knoxville
    Posts
    12,298
    Quote Originally Posted by Rob Luter View Post
    Around these parts they call Black Locust "Ironwood", and for a good reason. It's great at dulling chainsaws, plane irons, chisels, etc. It burns hot as blazes too, making your scrap and offcuts good stove and fireplace wood.
    I plan to take down a black locust tree in my yard sometime this winter. Anyone near me want some for woodturning let me know.

    JKJ

  2. #17
    Quote Originally Posted by Robert Marshall View Post
    Not having any experience with ammonia fuming, I'm not clear on what concentration is typical for "household ammonia." Many listings show very low concentration (1%, more or less). Can you be any more specific about what you have used successfully, for fuming? Maybe a brand name? Or a source? I would prefer not handling the lab-grade 28% concentration stuff, but how low can you go and still achieve a substantial darkening?
    Most of the time I've used Kroger's own "All Purpose Ammonia". I can't see any data on concentration. I think once on a jug from ome other store I may have seen 5%. I've gotten very strong darkening. I've occasionally used household ammonia from other chain stores. Mostly the darkening depends on the individual tree, and often a specific part of a plank. Stress wood will darken more than regular heartwood. I just leave it in the tote until the darkening is what I want, or doesn't seem to be getting any darker. Two days is generally enough, and putting finish over it darkens it further. It will NOT yield the same degree of darkening every time. Sapwood (white oak) will not darken much. I use household ammonia since, like you, there is NO way I would use any of the more concentrated versions. As I said above, I use it a lot with white oak, but very rarely with any other wood.

  3. #18
    Join Date
    Jan 2015
    Location
    Lake Burton, Northeast Georgia
    Posts
    150
    Thanks to all who contributed to the discussion, particularly the "fuming" idea, which was new to me.

    What a great place, Sawmill Creek woodturning! You come for the Ooohs and Aaahs, and stay for the new ideas, complete with all the "how-to's" and the "do's-and-don't's", all the stuff you need to know.

    Robert

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