I have been experimenting with adding gold (22K) and silver
(sterling) to old metal mostly old handmade square nails. I’m trying
to get the gold and silver to fuse and flow over the steel. I have
cleaned the rust with a wire brush and flux with silver-gold flux.It
seems to be very random as mostly the metal balls up and won’t
adhere. I have tried solder and using powdered silver as well as
snipits. sometimes it flows, sometimes it balls and adheres
andsometimes nothing. Is there a way to increase chances of bonding?