NuMetal?
Seal it up, and never drive the car in the rain or wash it with a garden hose. Just clean with a spritzer using distilled water and a terry cloth towel to keep it clean.
Keep the water and moisture off your car and don't park the car on a humid floor or poorly ventilated garage shack.
If it's not getting wet it's not activating the rust. These classics I always keep the water away from them.
Don't want to give them a reason to start bubbling out, especially with a nice paint job on them.