Tim, Before I add the ink I have the surrounding surface of the horn near polished and use a small water color paintbrush to apply the ink. The scrim scratches sop it up pretty good and anything on the surface is easily wiped off with a paper towel. When I'm done inking it up I knock back the surface with some steel wool so it will take up any pigment better, usually tea, when I boil it. I boil all my horns whether I dye them or not. It accentuates the Scrimshaw lines, I do go kind of deep with them. After boiling and installing the cap I let them sit for a day or so then wipe them down with 0000 steel wool. depending on requirements I may polish them after that, or just put a coat of floor wax on them.
Thank you fellows, much appreciated.
Robby