guys..........
  its tannic acid
tannic acid plus iron oxide
        makes ink.

    some woods, like certain oaks and others,
  have plenty of natural tannins.
  so you just make a rust soup (iron reduced into vinegar etc)
  and use that, and get plenty of color.

   Other woods you have to add your own tannic acid brew to the wood
   ( dissolved in water)

     bathed in one brew after the other,
   I don't think it matters which you use first.

   The thing that does matter is gloves and other precautions.
   You are basically making at least mostly permanent ink and it stains 
whatever it touches.
   You included.
        yours Scott

-- 
*******************************
    Scott Grandstaff
    Box 409 Happy Camp, Ca  96039
    scottg@s...
    http://www.snowcrest.n
et/kitty/sgrandstaff/
    http://www.snowcr
est.net/kitty/hpages/index.html



-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.5941 / Virus Database: 4342/9778 - Release Date: 05/14/15