so i’ve been experimenting with etching very thin metal, an old aluminium Litho plate that i tried to etch using ink from a gum arabic transfer as the resist and etched in copper sulphate- not the most successful it definately etched but not particularly around the image although it wasn’t the best image really.
I also tried the copper foil with a gum arabic print again and it took about an hour but etched really nicely i think i’m going to do some more small pieces like this. It is going to be practical i think when trying to etch a large piece as i should be able to fold it carefully into the tank although i think creasing is going to be an issue.
