It's bad corrosion. I've seen pictures of tests of different nails exposed
to it for a period of 14 years. Stainless was the only one that came out
looking about as good as it did when it went in. Hot dipped galvanized steel
was next with considerable external corrosion, but okay inside. Then came
I knew if I hung around long enough that the conversation would wind around
to something that I can claim expertise (metallurgy)... (sorry for the
length)
All the chat about galvanic corrosion is correct and copper and aluminum
isn't a good combination, but you're kind of stuck. You have to drive
Useful?
We need to see that you get out more.
Jerry Johnson
[EMAIL PROTECTED] 05/19/04 04:49PM
Wow!I finally knew something useful!
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- Original Message -
From: Ben Doom
When two differing types of metals are in contact, they tend to
chemically react, creating an electric charge and corroding both metals.
This is why knives should be stored in knife blocks, by the way.It's
also why the clamps on your battery
But it really seems to matter why aluminum is an issue.If it's an
integrity issue then you should definitely throw some padding.It might
just be a cosmetic issue however - maybe the two metals will turn green if
they come into contact for long periods.That's bad on the outside, but
fine for
is worse than
others.;^)
Jim Davis
_
From: Ben Doom [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 19, 2004 4:50 PM
To: CF-Community
Subject: Re: Deck construction question
But it really seems to matter why aluminum is an issue.If it's an
integrity issue then you should definitely throw
19, 2004 4:03 PM
To: CF-Community
Subject: Deck construction question
Longshot asking here, but who knows.
I'm working on a deck and I'm about to attach the ledger to the house. In
this case there's a pre-cut area in the siding for the ledger and it's
covered with painted aluminum roll trim
Longshot asking here, but who knows.
I'm working on a deck and I'm about to attach the ledger to the house. In
this case there's a pre-cut area in the siding for the ledger and it's
covered with painted aluminum roll trim for weatherproofing. From what I've
been reading, the new high-copper,
