No. Performix Plasti Dip is absolutely NOT gasoline resistant. At all.
The gas tank on my 1977 Ironhead Sportster can attest to this. Granted, my original Plasti Dip paint job wasn’t all that great, and it is definitely my fault for not screwing on the gas cap tight enough.
As you can see from the photo, the gasoline that spilled out of the tank ate up the Plasti Dip. It was an instantaneous chemical reaction: there was no time to clean off the tank before the gas turned the texture of the Plasti Dip into something reminiscent of a char grilled lizard.
I don’t want to repaint the whole tank, so I plan to follow one of the tutorials I’ve seen on YouTube showing how to repair Plasti Dip. I’ll post the results.