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.