Put the bird in a nest
02-22-2012 | 11:02 AM
#91
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From: Bell Canyon, CA
I figured unprotected (non-plated) aluminum structure and stainless screws combined with moisture (fresh or salt) caused most of this corrosion. I'm adding these Polyelastomer Cushioning and Sealing Washers .060" thick against the powder coated parts. Generally it will be:
Screwhead > SS Flat Washer > Poly Washer > Part > Poly Washer > Part > Poly Washer > SS Flat Washer > SS Locking Nut
Screwhead > SS Flat Washer > Poly Washer > Part > Poly Washer > Part > Poly Washer > SS Flat Washer > SS Locking Nut
02-22-2012 | 11:46 AM
#92
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Joined: Oct 2000
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From: Carlisle, MA USA
Sounds about the same as what Porsche does. Maybe a mylar film could work as well?
I found one of those tables. This one is for salt water.
http://www.eaa1000.av.org/technicl/c...n/galvanic.htm
I found one of those tables. This one is for salt water.
http://www.eaa1000.av.org/technicl/c...n/galvanic.htm
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02-22-2012 | 12:38 PM
#93
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Joined: Oct 2000
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From: Coastal North Carolina
I just counted on the powder coating and a dab of Tef-Gel corrosion inhibitor. So far, so good, but I'm in 98% fresh water, unlike you. Good thinking.
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Retired! Boating full-time now.
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03-02-2012 | 09:59 PM
#96
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From: Coastal North Carolina
