CORROSION RESISTANT SURFACE TREATMENT AND PRIMER SYSTEM FOR ALUMINUM AIRCRAFT USING CHROMIUM-FREE INHIBITORS

An article includes a substrate; a first corrosion protection layer disposed on the substrate; and a second corrosion protection layer disposed on the first corrosion protection layer. The first corrosion protection layer includes a sol-gel composition and the second corrosion protection layer inclu...

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Bibliographische Detailangaben
Hauptverfasser: KRIENKE, Kenneth A, KINLEN, Patrick J
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An article includes a substrate; a first corrosion protection layer disposed on the substrate; and a second corrosion protection layer disposed on the first corrosion protection layer. The first corrosion protection layer includes a sol-gel composition and the second corrosion protection layer includes a polyurethane composition. At least one of the first or second corrosion protection layers include a corrosion inhibitor.