Polyurethane protective tape used to cover bow from deck joint to waterline, 10 to stern on either side. Purpose is to keep bow pristine while I have it moored through the season. Prevents chain chafe and staining.

See 3M website for more info. Typically available at auto supply stores.

http://solutions.3m.com/wps/portal/3M/en_GB/automotive_solutions/home/produktkatalog/exterieur/?PC_7_0_B1S_command=AbcPageHandler and PC_7_0_B1S_theme=exterior_portal and PC_7_0_B1S_output=html and PC_7_0_B1S_vroot=206X7CMQMPge and PC_7_0_B1S_node=XT0DC56L86ge and PC_7_0_B1S_root=K3BHNB8005gv