Join Date: Nov 2009
Location: Redford, MI
Bronco Info: '96 Black 302 XLT - '94 Green 351 E. B. both are E4OD, 3.55 axles, 31 10.50x15
When I replaced my core support (on the '94), I called the POR-15 guys, and they told me that POR-15 only works well on bare metal, and that I should just wipe off the new core support with some of their "Marine Prep" stuff to get rid of any oil, then shoot the heck out of it with Rustoleum, or any other topcoat.
When I did my tailgate, I just sprayed the acrylic enamel (liberally) on the inside, outside, everywhere. Like I said, it lasted about 9 years.
"The simplest solution is usually the best solution" - Occam's Razor
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them." - Albert Einstein