Patco 1800 Is An Aircraft Corrosion Inhibitor Moisture Barrier Tape Designed For Water Seal Aerospace Applications In Main Cabin Wet Areas (Galleys, Lavatories, & Entryways). Features Of Patco 1800FR Include: Tough, Conformable And Moisture Resistant; Permanent And Flame Retardant; Allows Wide Width Usage; Helps Prevent Corrosion On Floor Structures; Will Not Delaminate; Meets FAR Requirements; Compatible With Most Sealants; Fast Application; And Can Be Die-Cut To Various Shapes.