I did an experiment on a scrap a while back where on some advice I had received, I applied a coat of dark walnut dye which was made using a solution Ferrous sulphate and Transtint dye dissolved in distilled water. I followed that by sanding and then a coat of brown mahogany. I was told the Ferrous Sulphate would really bring out the chatoyance in the curly maple and it seems like it did. BUT, those were applied with a rag, but I want to spray when I do my banjo neck. Are there concerns when spraying the dye made with Ferrous Sulphate solution? I know to use a mask, but are there there other issues? Do I need to concern myself with corrosion in the spray gun? It's mostly stainless, but I know there are some aluminum parts too.
Last edited by Quickstep; 01-09-2017 at 12:26 PM.