papa al Posted April 10, 2021 Share Posted April 10, 2021 (edited) Boats use them. Would they help vs corrosion on moto wheels, frames, engines, &c? Edited April 10, 2021 by papa al Link to comment Share on other sites More sharing options...
eisfeld Posted April 10, 2021 Share Posted April 10, 2021 Quote In fresh water, zinc anodes produce a film of zinc hydroxide on the anode's surface, which blocks current flow. Because of that, zinc anodes are not effective in freshwater and are used in saltwater applications instead. https://www.corrosionpedia.com/definition/4326/zinc-anode Guess they wouldn't be too effective on a motorcycle unless operated in salt water. Link to comment Share on other sites More sharing options...
VocalNeal Posted April 11, 2021 Share Posted April 11, 2021 Zinc anode , I believe , only work for galvanic corrosion because they are less noble than the other metals and are sacrificial. For a bike just liberally coat all the bits you are worried about with WD-40 to dispel and moisture. Then keep the bike clean. Link to comment Share on other sites More sharing options...
MartinL Posted April 11, 2021 Share Posted April 11, 2021 (edited) Just as zinc can act as a sacrificial anode to protect against corrosion of steel, so can aluminium and magnesium. Therefore your engine cases can prevent corrosion of your bike frame by slowly being consumed, if the bike's kept in a permanently damp environment. Keep It Clean and Dry!!!! Edited April 11, 2021 by MartinL Link to comment Share on other sites More sharing options...
papa al Posted April 11, 2021 Author Share Posted April 11, 2021 56 minutes ago, MartinL said: Keep It Clean and Dry!!!! There-in lies a problem. papa's bikes are always getting dirty and/or wet. papa knows every worker at the carwash, all of their children, all of their names. And yes, the Al/Mg is being sacrificed; the Fe oxidises too. Entropy. In 'mercan neighborhoods they bury zinc slugs in the ground & connect to the steel gas lines. No salt water around. Link to comment Share on other sites More sharing options...
Damrongsak Posted April 11, 2021 Share Posted April 11, 2021 There are more modern ways of dealing with corrosion if you actually ride the bike often. Just plug it into a USB port on your scooter and atmospheric corrosion is a thing of the past. We are working on a version for tropical climates that will not require a wool flannel shirt. 2 Link to comment Share on other sites More sharing options...
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