Hi Norm,
I do not think you will successfully blend in a repair on 2 pack. Probably have to repaint the whole component which can not be that big on a bike eg a fuel tank or a mudguard. Professionals seem to only repaint whole sections these days. You might blend with acrylic lacquer only but often the blend shows up after a few years. I did have the whole side of a van repainted once on the insurance "lifetime" repair warranty for just that reason. I think the insurance company did not bargain on me keeping that vehicle for 18yrs.
All the best
Jeff
