What causes Mercury drives paint to bubble
06-06-2009, 03:37 PM
#1
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What causes Mercury drives paint to bubble
What causes the paint to bubble and flake off like this ?
Ive seen a lot of Mercury black drives doing this. What ya think?
For instance,This was a new boat at Emerald beach poker run 8-08.
Ive seen a lot of Mercury black drives doing this. What ya think?
For instance,This was a new boat at Emerald beach poker run 8-08.
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06-06-2009, 04:04 PM
#3
how does the aluminum corrode under the paint then flake off.I have some on my drive caps that are fresh water and never stays in the water over night.104 hours.
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06-06-2009, 05:37 PM
#5
Charter Member #232
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I am going to guess electrolosis (sp) and such for the most part. What you are looking at there is powder coat pealing off.
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06-06-2009, 05:47 PM
#6
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Good question Rob. My Speedies have done the same thing despite all freshwater and on the Hydro-Hoist when I'm not running it. It seems like the oxidation occurs under the paint and just pops the paint off. But that's just a guess on my part.
06-06-2009, 07:07 PM
#7
I have that happening on a powdered coated step pad from eddie marine. Almost never been wet. Bubbles under the paint. I think the paint gets scratched at the bolt hole, the bolt is stainless and the whole dissimilar metals corrosion thing starts.
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