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Title: Evaluation of several corrosion protective coating systems on aluminum

Abstract

A study of several protective coating systems for use on aluminum in seawater/seacoast environments was conducted to review the developments made on protective coatings since early in the Space Shuttle program and to perform comparative studies on these coatings to determine their effectiveness for providing corrosion protection during exposure to seawater/seacoast environments. Panels of 2219-T87 aluminum were coated with 21 different systems and exposed to a 5 percent salt spray for 4000 h. Application properties, adhesion measurements, heat resistance and corrosion protection were evaluated. For comparative studies, the presently specified Bostik epoxy system used on the SRB structures was included. Results of these tests indicate four systems with outstanding performance and four additional systems with protection almost as good. These systems are based on a chromated pretreatment, a chromate epoxy primer, and a polyurethane topcoat. Consideration for one of these systems should be included for those applications where superior corrosion protection for aluminum surfaces is required.

Authors:
Publication Date:
Research Org.:
National Aeronautics and Space Administration, Huntsville, AL (USA). George C. Marshall Space Flight Center
OSTI Identifier:
5771701
Report Number(s):
NASA-TM-82402
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; CORROSION PROTECTION; PROTECTIVE COATINGS; SEAWATER; COATINGS; ELEMENTS; HYDROGEN COMPOUNDS; METALS; OXYGEN COMPOUNDS; WATER; 360105* - Metals & Alloys- Corrosion & Erosion

Citation Formats

Higgins, R H. Evaluation of several corrosion protective coating systems on aluminum. United States: N. p., 1981. Web.
Higgins, R H. Evaluation of several corrosion protective coating systems on aluminum. United States.
Higgins, R H. 1981. "Evaluation of several corrosion protective coating systems on aluminum". United States.
@article{osti_5771701,
title = {Evaluation of several corrosion protective coating systems on aluminum},
author = {Higgins, R H},
abstractNote = {A study of several protective coating systems for use on aluminum in seawater/seacoast environments was conducted to review the developments made on protective coatings since early in the Space Shuttle program and to perform comparative studies on these coatings to determine their effectiveness for providing corrosion protection during exposure to seawater/seacoast environments. Panels of 2219-T87 aluminum were coated with 21 different systems and exposed to a 5 percent salt spray for 4000 h. Application properties, adhesion measurements, heat resistance and corrosion protection were evaluated. For comparative studies, the presently specified Bostik epoxy system used on the SRB structures was included. Results of these tests indicate four systems with outstanding performance and four additional systems with protection almost as good. These systems are based on a chromated pretreatment, a chromate epoxy primer, and a polyurethane topcoat. Consideration for one of these systems should be included for those applications where superior corrosion protection for aluminum surfaces is required.},
doi = {},
url = {https://www.osti.gov/biblio/5771701}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 1981},
month = {Sun Feb 01 00:00:00 EST 1981}
}

Technical Report:
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