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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What Plating Finish Should Be Used on Outdoor Brackets?
2002
What is the best plating option for a CRS stamped mounting bracket set that would be used on outdoor applications. Durability, corrosion resistance, and costs are important. I've been told several different options: Zinc plate ATSM ASTM B633 SC4, Hot-dip Galvanizing ASTM A123, and Nickel plating.
Anyone have any suggestions.
Tim Frank- Akron, Ohio
Paint on top of a properly phosphatized surface is cheaper than plating or galvanizing and offers better salt spray resistance. Galvanizing will be more expensive than zinc plating because it will be significantly thicker; for that reason it will outperform plating. In general, nickel plating is not the answer for outdoor exposure unless aesthetic requirements dictate.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2002
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