68 barracuda 383s "Driver Paint Resto"

It won't hurt to let it sit a day or 2. It will depend on how much humidity you have in your immediate area, as to how fast the bare metal will flash rust. When I do that, I just go over it with a DA sander before applying the epoxy. I usually use a piece of half worn out 80 grit, so it will give the metal a little tooth for the epoxy to bite....but not so rough that it leaves deep scratches in the metal. I have used PPG's DP90LF epoxy, and recently used Southern Polyurethanes (SPI) epoxy primer. I like SPI's stuff better. Google Southern Polyurethane Inc. , and see if they ship to Ontario.