Hi
A lot of people just use black permanent marker to touch up scratches on painted metal.Aluminum is another story.I understand your Adcom side panel is sheet metal sprayed in black at factory,so you could use a black marker.If you want the best then you can fill the scratch with layers of paint,you have to mask around it and keep applying the paint in layers once the previous layer has dried out,put another and so forth.Look at the automotive section of a hardware store for a touch up paint in small bottles.The cover has a tiny brush on the inside.You can get a good result like that.At the end you can buff it up with polishing compound.
You can always remove the panel and send it to be sprayed in a auto body place.
Best of luck
George
A lot of people just use black permanent marker to touch up scratches on painted metal.Aluminum is another story.I understand your Adcom side panel is sheet metal sprayed in black at factory,so you could use a black marker.If you want the best then you can fill the scratch with layers of paint,you have to mask around it and keep applying the paint in layers once the previous layer has dried out,put another and so forth.Look at the automotive section of a hardware store for a touch up paint in small bottles.The cover has a tiny brush on the inside.You can get a good result like that.At the end you can buff it up with polishing compound.
You can always remove the panel and send it to be sprayed in a auto body place.
Best of luck
George