Thanks for the information; I couldn't help but laugh when I saw your pictures- I've been on ships with smaller deck space than that flatbed! It must have taken the six quart pack of the POR-15 to coat the boards twice.
Your statement, "we sprayed the underneath with 2 coats of POR-15 a year after the top of the boards were painted" is the basis for my curiosity in utilizing the POR-15 as a sealant, and the reason I wanted to see your pictures. If it (POR-15) seals wood fiber as well as it seals the places I have used it on metal, I seriously think the wood boards need to have an (unknown) amount of time set aside to 'breathe'... In application, this would mean that one side of the board was left bare for this unknown amount of time.
This has not been addressed as far as I have found; again, this is just my curiosity and wood working experience talking. My common sense says, "it's a blame truck bed, who cares?"
Brad
