Re: Yellowed plastic case Message #2 Posted by Frank Boehm on 12 July 2005, 8:21 a.m., in response to message #1 by Arnaud Amiel
Assuming it is not dirt, you probably can't do anything about it. It's a non-reversible chemical reaction (UV rays modifying plastics).
It might be possible to use H2O2 (try it on a hidden surface) to bright it up, I doubt it though.
The only way to prevent yellowing is to hide the item in a dark, dry, cold place. If you want to create a showroom, there is special glas (UV blocking) available - you do need special lighting as well (UV free).
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