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Old 12-08-2011
samgary samgary is offline
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corrosion in aluminum mast - options

I have recently un-stepped my mast in order to make a repair. Upon further inspection i have noticed a small area of galvanic corrosion above the cabin, on the forward side of the mast, where a stainless fitting was mounted. The corrosion has eaten a small hole, less than 1/4" in diameter through the mast The mast is keel stepped. The rest of the mast is in very good condition, with a minimal amount of corrosion.

My plan is to make a 4"x4" aluminum "band-aid" and rivet it on for reinforcement. I also plan on applying something to stop the existing corrosion as well as re-bedding all current fittings with tef-gel.

Any feedback/advice on process and or products would be greatly appreciated.
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