I know this has been discussed before but here it goes anyway. I will be installing a new inner and outer bed side panel on a '99 F-250 (longbed). The inner panel attaches to the bed floor with a pinch weld, like a rocker panel. I will be plug welding this pinch weld with the welds about 1 3/4 inches apart like the factory did. There will be about 50 welds just on the pinchweld. Should I use epoxy or weld-through primer on the pinch-weld flanges prior to assembly? I prefer epoxy but the welds are so close together I think most of it might burn off. I also don't think the weld-through primer will offer much corrosion protection as it will be subjected to what ever the truck is used for, whether hauling dirt, fertilizer, or four-wheeling through mud holes. The seam will be sealed on top but the flange (pinchweld) on the bottom will not be sealed, other than epoxy on the outside.
By the way, not interested in using adhesives.
By the way, not interested in using adhesives.