Patent ID: 7546683

Claim:
A method for repairing an imperfection in a corrosion-inhibiting layer paint oxide system comprising a plurality of layers on a turbine engine component, the method comprising the steps of: providing a turbine engine component comprising a superalloy substrate, wherein at least a portion of the substrate has been treated with a corrosion inhibiting paint oxide system comprising aluminia and chromia, wherein an imperfection region is present on the system exposing the superalloy substrate beneath the system; providing a touch-up paint comprising alumina particles, an evaporable solvent, and a binder selected from the group consisting of silicate, silicone, chromate phosphate, siloxane, and combinations thereof; applying a layer of the touch-up paint to the imperfection region; drying the layer of touch-up paint; and curing the layer of touch-up paint at a temperature up to about 1000° F.; wherein the touch-up paint further comprises additional oxide particles selected from the group consisting of chromia, silica, titania, zirconia, tantala, and combinations thereof.