RE: [DML] Custom Made Gas-Flap door

["Nelson, Allan" <abnelson@xxxxxxxxxxxxxx>]

Aluminum and SS are relatively far apart in the Galvanic Series, which means
that there is a good potential for high galvanic cell voltage.  Of course,
for this to be a problem, you need an electrolyte between the metals.
Unless it is submerged or lives in a very humid climate, it shouldn't be a
problem.  If galvanic corrosion does occur, the aluminum will be the anode
so the SS will not be harmed.

Al (no VIN...just lurking!)

-----Original Message-----
From: Ed Garbade [mailto:edgarbade@xxxxxxxxxxx]
Sent: Thursday, March 25, 2004 11:54 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Custom Made Gas-Flap door


Interesting concept.  I noted that the flaps shown all appear to be aluminum
so that brings up another issue for me.

Can anyone give me a definitive answer with respect to (and I may be stating
this wrong here but it's the best I can do) dissimilar metal galvanic
corrosion between stainless and aluminum?

Is it a problem or not?

Ed
10541

> I am thinking of installing a custom gas flap.



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