Sweet info man thanks! Looks like CF is out. I'm not making this particular skid for the engine, as I already have one of these and it is killer. It gouges pretty easy but compared to the Aluminum skid I had on my last bike it is brilliant. It is 1/4" and the "wings" are folded up from the bottom piece and then welded at the bend so the part that sees the most abuse is all one bit. I bought a Hyde racing skid plate and was very unimpressed with the fit and quality of it given the price. The Hyde is made from 1/8" and the parts are joined via the pop-rivet method you outlined. I ended up cutting it up to where just the pipe guard bolts to the AXP skid plate and then mounts to the pipe with the included band thingies. It has a bunch of little rubber nubbins which isolate the pipe from the skid portion and it seems like those coupled with the shape of the guard are what provide the protection more than the thickness of the material. My plan is to build a faceted pipe guard which integrates better with the AXP plate out of 1/4" HDPE seaboard and try to use as few separate pieces as possible and weld as little as possible.I already have a rivet gun so I might make some gussets for the major seams and pop-rivet them over the seam to reinforce it, but was thinking of using 1/8" HDPE for that. My research today didn't turn up any UHMW that was black or UV resistant so if you know a source for that I'd love to hear about it. Also, I think the rubber nubbins Hyde uses are silicon rubber for heat resistance because they spend their whole life in contact with the pipe. I don't know where those are sourced from but if you have any insight for a solution there I'd appreciate it. Thanks for all your input!