De-yellowing

[Terry Stewart]

>Has anyone tried ditching the peroxide and simply gone to using a solution
of sodium percarbonate (e.g. "Oxyclean")?
>Cheap and pretty shelf-stable in the powder form

Yes, I have Chuck.
http://www.classic-computers.org.nz/blog/2011-01-21-deyellowing-with-oxy-only.htm

Sometimes it doesn't turn out well though...
http://www.classic-computers.org.nz/blog/2011-04-11-lisa-keys-retrobrighting-misstep.html

With my own retr0briting I've found off-white cream cases come up well, but
anything that is grey can easily "bloom" if over exposed.

In my experience deyellowing is only temporary
http://www.classic-computers.org.nz/blog/2013-01-15-retr0bright-only-temporary.htm

It does make the cases look good for a while though. (:

Terry (Tez)