I know a lot of you guys did the strip to bare metal when remod'n. My ? is "Do you use zinc chromatic before doing epoxy paint on the bottom coat??" Alot of projects are unclear on this & I'm getting close to this next venture & would appreciate some info.Also, how many coats of epoxy do I need?I'll be fishing ICW's & close to oysters,sand bars,etc.Can you older salts help a fisher bud out?