It has been asked if itís possible to repaint bc/cc over ss urethane without any adverse effects. The answer is yes. You can also repair and blend when needed. I did just that recently on 71 Fiat for a customer.
As mentioned above this car was painted previously with ss urethane. Nobody wanted to do it for him without repainting the whole car because they couldnít match the color. Nobody knows the paint code that had been used. He came referred to me because a previous customer went through the same thing and I was the only one that around that would do it. I like to eat.
I called my jobber and had him come down to the shop with his camera thingy and do his thing. After he did his thing back at the store and came up with a code I had him return to my shop with alternate chips to the GM code he gave me so I could do my thing. Verify the color match.
Hereís how the car was delivered to me:
All he wanted was some fiberglass cracks fixed and few other defects corrected. Yes it is a fiberglass body.