i found 1 finish pic. i wet sanded the back 1/2 ,buffed the whole bottom & waxed it a few times.i did not notice a difference in speed without the speed coat,as it was speed coated after the first bottom repair
i also had my trailer fenders cracking the plates that they were bolted to . so i welded gussets. i resprayed the outside frame of the trailer & also added new bunks,carpet & a extra brace on the long bunk for extra support as people seemed to think this was the cause of the cracking . i don't think so but it wasn't hard to do . not sure if it will hurt or not though.flexibility on the trailer? i recommend if you are going to paint a trailer to check all the welds on the frame inside & out . my trailer was cover pass welded & bondoed over so the body filler would start cracking . the backside of the welds were not complete so the the welds were cracking.where the frame comes together in the front the plate has a weld that was not done right either & after the first paint job it cracked right away also, right under the bow eye.also i recomend adjusting the trailer bunks before you paint.