Hypalon is a synthetic rubber material made by polymerizing chlorosulfonated polyethylene. It is prized for its exceptional resistance to chemicals, temperature extremes, ultraviolet radiation, and weathering, making it ideal for applications like inflatable boats, fuel tanks, roof membranes, and protective coverings where durability and weather resistance are paramount. While costly, Hypalon's superior performance in harsh environments has made it a go-to elastomer for demanding industrial and marine applications.