Re: case plastic yellowing question

["Timbley" <timhaynes@no.spam.please.alumni.uwaterloo.ca>]

This guy did an interesting experiment with a yellowed IIe.  Anybody want to
try replicating it?

http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&threadm=F1xM5C.7CM%40nemes
is.lonestar.org&rnum=3&prev=/groups%3Fq%3Dplastic%2Byellowing%2Buv%2Bgroup:c
omp.*%26hl%3Den%26lr%3D%26ie%3DUTF-8%26selm%3DF1xM5C.7CM%2540nemesis.lonesta
r.org%26rnum%3D3

Or, the shorl'd version:  http://shorl.com/hudrivarufadro

Tim

"Matthew Russotto" <russotto@grace.speakeasy.net> wrote in message
mo6dnY6Og_aYdFDdRVn-ug@speakeasy.net">news:mo6dnY6Og_aYdFDdRVn-ug@speakeasy.net...
> In article <T46dnVAQHY2vKlDdRVn_iw@comcast.com>,
> Bill Garber <willy46pa@comcast DOT net> wrote:
> >
> >Can't say one light is worse or better than another,
> >but I know that UV is the worse when it comes to yellowing.
> >I have heard also that systems kept in total darkness but
> >are in a moist area also yellow. Not sure but I think heat,
> >the heat caused by light or other sources can be just as
> >bad.
>
> Heat, oxygen, and UV all accelerate the yellowing, but it's going to
> happen no matter what; the plastic contains the seeds of its own
> destruction.