...restorers think: /irony mode on/ well you have to paint the underside with something. Might as well be shiny paint. Even though the factory put strategic undercoating for noise and corrosion resistance./irony mode off/
But autoxcuda, the proof is in the pudding, isn't it? The rust-prevention measures that the manufacturers took back in the '70s didn't work very well, because so many of the cars rusted out. I think that today it is all about preservation of the car, and there are much better alternatives, even though they are shiny and not at all authentically correct because they don't look anything like factory undercoating. For example, on the Porsche 356 restoration that I am doing right now, the painter convinced me to shoot the underside with PPG Delfleet One over DP90 epoxy primer. But I already discussed that here:
