Little update, Ive tried some new test pieces and slightly better in colour but still not perfect. I really dont think its the metal now and something to do with the chemicals. I have actually ordered a solution from a company here in U.K that states its the Birmingham Black formula and obtains a decent blue. I will use my original process and same test pieces and see if it works with better results. If so, I guess thatll mean theres a problem in my original solutions. I did get an email saying there mixing it and that it takes a few days to wet out. Never read that saying in Angiers book, does anyone know what that means? Im guessing its to let all the chemical reactions take place before decanting down.
I degrease all my wire wool in acetone. Leave them to soak for a while then take them out and let them dry naturally. I always thought thats enough but could be wrong.
JMH
