I tried searching but couldn't find much of what I was looking for, likely because I may not know the terminology. I'm nearing the end of building an Apogee Zephyr, and I'm thinking about paint options. Still have more research to do but am leaning towards automotive spray cans (duplicolor) and 2k clear. My question is mainly around prepping the body and fins. I've seen standard practice is to spray a few coats of duplicolor high build primer and sand smooth. But what about the fins? Do I need to do anything to "seal" the 1/4" plywood fins or is the high build primer enough?