Joshua Putnam wrote:

In article ,
says...

Does this corrode or tarnish?

Yes... No... Depends...


It's tough... But it is not ever safe to use where salt is going to be
present.


There's anodizing and there's anodizing. Sailboat masts are often made
of anodized aluminum that holds up to decades of salt exposure, but I'm
sure that's not common hardware-store-grade anodized tubing.

There is two items here - one the type of Aluminum is used and then the
quality or process of anodizing. Sometimes it is a slight etch so color
can be implanted or sprayed on paint. More tooth than anodizing.

Used to send Al boxes out to be 'dipped' so when handling them we wouldn't get
black hands. It made the Al - stable in that sort.

Martin

--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder