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  1. #16
    Join Date
    Apr 2011
    Location
    McBride BC Canada
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    It's a mineral salt, iron acetate, which complexes with the organic tannins in the woods.
    A presoak in very strong tea will add tannins to weak wood for a deeper stain color.

    I made some, tried it on a variety of wood carvings and concluded that it just made the wood look dirty.
    Nothing was ever exposed to sunlight (UV) so I don't know how that might bleach the tannin component
    and what result you might then see.

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  3. #17
    Join Date
    May 2012
    Location
    Melb
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    1,545

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    I found on Vic Ash which has a reasonable tannin content it would go a motley blotchy sort of dark grey and just looked dirty. However I've had great results on American White Oak with it pretty close to a pure black, so I've ordered some of that Quebracho powder to use and see how it goes on some oak and walnut along with the iron oxide treatment. If anyone's after the powder, this Aussie crowd was really cheap, and they also have a 30% off special atm:

    Querbracho Natural Dye Powder
    – Fabric of Humanity


    cheers, Ian

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