I got some galvanized steel boxes at IKEA a while ago, not realising that galvanized steel could present a problem when I went to paint them. After searching numerous sites I noticed that a lot of the information was for industrial use and not for a crafter. The most useful information I found was here, a forum on a sheet metal site. There was input from artists and it was helpful all around.
What I decided to do was sand to create some texture for the mediums to adhere to, then wipe down with vinegar to get rid of some of the oily residue . Then I gave it a coat of Golden matte regular gel and painted over that.
Hopefully the paint will stick after the steps I have taken to prepare the surface. I have not decided what I want to do with it after this. The Persimmon paint came out far more orange than I thought. I was expecting more of a red. As Hallowe’en is my favourite and coming up, I may use my wealth of Hallowe’en embellishments on it to play on the fall colours. I will post photos of the finished product!