... resistant floating bridge,ocean pontoon,floating pontoon,floating dock,pontoon,modular float systerm,pontoon systerm,marina,jet ski dock ,jetty ,pier ... high-density polyethylene. It can resist shocks, climate changes, bad water and sun conditions as well as to a large range ... . Do not oxidize or deteriorate in any way. So the water environment where the pontoon is floating will stay perfectly clean4 ...