Home /
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989


Coating system for bare aluminum alloy shipping containers in a marine environment


I am involved with the design and construction of a structure which is similar to a ship container; however, the external surfaces are AA 5XXX aluminum alloy. This material will be as received from the mill and will not be anodized or, otherwise, have a protective coating. The structure will be sited on an island in the Mediterranean Sea, and will be subjected to a marine environment. I need a recommendation for a coating SYSTEM that will be durable and protective for at least five years.

Irving W. Glater, P.E.
Materials Engineer - W. Hartford, CT, US


We are building a similar unit and we are using the following system for the aluminum portion of the container:

SSPC-SP1 Solvent Clean then SSPC-SP7 Brush-off Blast, then one coat 4-7mil DFT of Polyamide Epoxy 2 component paint. Manufacturer recommends this for the marine environment. It is self priming. I believe any coating manufacturer will be able to supply a suitable coating for you. Be sure to follow their instructions PRECISELY in order to assure a properly coated job. As a side note, we are using this as a topcoat over a zinc-rich primer for the steel portion of the container.

Rob Reed
Industrial/Military Manufacturer - Southampton, Pennsylvania, USA

finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA