Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Galvanic disaster? Aluminum sign faces / Galvanized steel posts / aluminum post brackets
Hello there - we're a sign business in south Florida with an interesting question from a customer ... with the combined installation in a Caribbean Island location of aluminum sign faces / Galvanized steel posts & aluminum post brackets with fasteners, how do we provide accurate guidance on the risks of corrosion if any after several years exposure?
Thank You.
sign contractor - Fort Lauderdale, Florida
April 12, 2011
There are established salt spray standards for corrosion resistance. It is likely that those standards would help you evaluate the materials in question.
ASTM B117 is likely the standard you want. It is much more difficult than you might think.
- Austin, Texas USA
June 21, 2011
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