I just joined so i’m not positive how this works. Basically I have
recently started electroforming with copper. For the most part
everything is going fine (still some kinks) but the one problem i
keep running in to is the patina. If i apply Liver of Sulfer or
Silverblack to the piece after cleaning it and sanding it, it turns
black but when i even touch it the color either slides off or it
will literally flake off, showing shiny copper underneath. I have
been able to get it to stay to an extent by applying the LOS after
burnished the entire item, sanding it with the flexshaft and then
brushing it. However, even after doing this the color will come off
in spots. I’ve tried researching it online but its proved difficult.
I’m at a loss as to the reason behind this is happening and how to
prevent it and would love any advice whatsoever.