De-yellowing results

Tothwolf tothwolf at
Fri Aug 28 17:52:01 CDT 2015

On Fri, 28 Aug 2015, Ali wrote:
> On Fri, 28 Aug 2015, Evan Koblentz wrote:
>> Not a concern: we'd just build a walled tub of sorts, put in enough de- 
>> yellowing solution to cover the yellowed item in question, and have the 
>> plexi sitting well above it. The solution would never be anywhere near 
>> the plexi.
> Actually I was thinking the tub would be built out of plexi. That way 
> you could get the same level of light from all around as opposed to just 
> from the top (hence the reflective surfaced for the container). That way 
> you may get more even UV illumination on all the surfaces especially in 
> the nooks and crannies. Just a thought though as it may not improve or 
> make things worse.

Why get so elaborate? Last year while I was looking at building an indoor 
UV setup, I was considering a simple wooden frame to support four 24" T8 
blacklight lamps about a foot or so above my bench. I haven't yet gone 
much further than looking at various lamps/fixtures/ballasts since I'm 
still not sure de-yellowing many of my computers would be worth the 

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