okay ,I could be a little confused, the frame is now newly painted, now you want to cut off the tabs and the seat latch because the paint is scratched. Am I with the program so far?
So the new paint is weak , chipping and easily scratched right ? So you need to paint it over? but you don't want to strip it down because it's a drag? Am I still with you?
If I am, I have to ask why that engine is in the cradle of the frame that you secretly know that you will have to strip and repaint?
The weak paint will continue to be just that ,even if you spray the perfect coat of a better paint over it, it will still be weak, that weak paint (the weakest link) will haunt you until you take care of it.
Agreed , the color is fantastic.Q: is that a single stage paint? Q2: Did you use a hardener? Clear coated? That needs a hardener too? Did you use a medium evap. thinner or something else? Did you use an air dryer and inline filter? What type of gun laquer, enamel,of general purpose? Was is a hot,humid day when painting? Did you wheel it out in the sun to fully dry? did you reshoot light coats keeping a wet line or do separate coats after losing wet line(possibly drying only the top and resealing with another coat leaving the first coat unable to fully dry) I know ,lots of questions, wanting to get to the reason for this paint failure so when you do it over,it won't happen to you again.
It's certainly is a drag to re-strip the frame, but if you don't ,the likelihood of a successful paint job will be slim to none, and nobody wants to do the same frame 3 times.
Otherwise your project is coming out nicely, like the 500T tank,adds depth to your build ,the color cast iron is unusual and I like it.The engine clean up and paint looks great from here ,and who doesn't like polished aluminum?
I usually use degreaser and spray it off at the car wash then clean the motor up with turpentine/paint thinner to get the crud and degreaser chemical residues( that could mess up your finish paint) off it before anything else happens,that way it doesn't get transferred to everything else that is touched .
I've done a red frame and a drk. metaflake green frame before , never did a blue one, in fact I have no blue in the stable, my next 550 build just around the bend and blue is looking good to me . Thanks.