@Enki, I was saying about Com-cut that came along with Com-paint. I think its a rubbing compound. As per the Com-paint instruction, it has to be applied after 24 hrs of painting. I think its to remove extra pain that has been over sprayed and to merge it with existing one. So it removed the paint that I sprayed on the scratched part. I may have to redo allover again and apply metal paste as you said. Probably that is the reason why its not sticking on to the surface.