I considered the same … The old Imron was a two step paint that would stand up to just about anything but DuPont removed it from the market and the common paint after that was JetGlo from Sherwin Williams, a water based paint.
I suspect the aggressive solvents in 100UL (Toluene) are melting the water based paint.
Imron is back on the market but I don’t know the resistance difference between Imron of today and Imron thirty years ago.