It's thicker than formica, thinner than 1/8" plywood if that helps. The repair you described is what we did on the driver's side between the 2 windows. There was a small bubble and it bugged me. There are numerous YouTube videos on how to do it, and a couple of them sell an epoxy repair kit. My next exterior project is to get the crappy, peeling decals off and get the trailer waxed. I washed it yesterday (it hadn't been washed in years it seems) and all the "moldew" (mold & mildew spots are gone). The skin feels pretty good, but it needs a protectant on it.