I prepared Arches Platine paper with Golden's Silverpoint Drawing Ground. I drew with copper, brass, and sterling silver 0.9mm metal points.
As the oxidation process began the copper and some brass marks began to fade on the drawing to the point that some marks have almost disappeared. I am finding this very frustrating and disappointing, as I am seeing parts of the drawing disintegrate.
I was wondering if anyone has had this experience and has any suggestions for how I can prevent this in the future.
I'm not sure if it is occurring because I pressed very gently in some areas, leaving very little metal on the paper or if I prepared my surface incorrectly with the Golden ground.