It's good to hear from someone who knows about the chemistry related to this subject. I tend to leave the cases as-is, or just wash with soap and water. I store computers out of the light. Bill > > > I have looked at the retr0brite website, and gone throgh all the > information there. > > It is my opinion that this procedure has not been adequately tested, > and there is a possibility that this procedure may cause long term > damage to the plastic. > > I am a chemist and have some experience testing resins. > > The retr0brite information mentions a white "bloom" on the plastic > from over treatment. This condition is permanent. It also represents > chemical damage to the plastic. > > A common procedure to determine the chemical resistance of polymers, > is to put various reactive chemicals on the surface and determine > whether, and how much time it takes for noticeable chemical damage to > occur. This usually shows up as a white "bloom", but this is not the > only damage. Polymers can also suffer damage that is not visible, but > causes the polymer to lose its strength and prematurely "age". > > The retr0brite information says that you should be careful not to over > use the chemicals so that the white "bloom" does not occur. But this > does not necessarily mean that chemical damage has not occured. If it > takes x amount of time to create the white "bloom", then using it for > half that time probably means that half the damage has occured. > Whether the damage is visible is not the real question here. > > It would take aging tests to determine whether the plastic is damaged > from the retr0brite procedure. I do not see any indication that > retr0brite treated plastics have been subjected to aging tests. > > > > > > > On Fri, 23 Jul 2010, Bill Degnan wrote: > >> >> Search for "retr0brite project" >> Bd >> >> >> > Message was sent through the cbm-hackers mailing listReceived on 2010-07-27 12:00:04
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