A car frame or a statue are examples of bulk usage and isn't actually what I was talking about.
A car body on the other hand is a different kettle of fish as is the use for the pages of the notebook in question. Cars have a short half-life so the problem is rarely noticeable particularly with the frame. Those are thin shells. Corrosion occurs on both sides and at any crack or penetration. The surface sealing effect of interacting with air is what gives AL its reputation for corrosion resistance -- AL actually depends on it for the protection. The alloy really matters also. Things that bend will tend to break the seal -- also road debris scratches and tension around fasteners -- where cracks like to start yielding corrosion paths. The comment came from a car restoration show about an AL bodied car that was built in small numbers with few surviving vehicles; it was probably a Hudson Italia -- American Hudson with an Italian built body. The statue may be aluminum but it looks coated with a yellowish material. I assume its probably covered with some other metal paint. Also considering how clean the statue looks I would not be surprised if the picture hadn't been taken shortly after a periodic maintenance. Piccadilly Circus is infested smog emitting cars last I heard -- it just can't be that clean after 100+ years On 10/20/2012 4:22 PM, Logan Streondj wrote:
On Sat, Oct 20, 2012 at 12:21 PM, Eugene Surowitz <[email protected] <mailto:[email protected]>> wrote: And be careful of the metal for notebooks: At 50 years: a decent rag content paper is yellow free and flexible; at 50 years: an aluminum car body is turning to dust. could you provide some references for that? with an iron car frame that is believable, however aluminum is highly corrosion resistant. Here is the first statue cast in aluminum 1893 http://en.wikipedia.org/wiki/File:Eros-piccadilly-circus.jpg after over a century it is still shiny.. As long as you don't use aluminum as an anode in a battery, it'll maintain it's corrosion resistive abilities. Quill pens anybody? Gene make sure to use only alkaline paper and inks for archival. I use acid-free paper for my printing my blogs. If I had my own laser printer could print them on aluminum foil. *AGI* | Archives <https://www.listbox.com/member/archive/303/=now> <https://www.listbox.com/member/archive/rss/303/12987897-64924e57> | Modify <https://www.listbox.com/member/?&;> Your Subscription [Powered by Listbox] <http://www.listbox.com>
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