[GreenKeys] OT: whitening yellowed plastic

[Sam Hallas]

Gil Smith wrote:
> This applies more to vintage computer cases and such that have yellowed, 
> and I am sure has been brought up here before, but I ran across it when 
> searching what to do about yellowed whirlpool tub jets.
> 
> The original pc guys who did it:
> http://www.retr0bright.com/
> 
> The folks working on  household parts recommend:
> https://www.sallybeauty.com/hair/hair-color/developer/40-volume-creme-developer/SLNCAR63.html

I did extensive tests on telephone case a few years ago and found the 
simplest solution was the Oxy bleach powder sold as a stain remover for 
home laudry use. The magic ingredient is called TAED.

<http://en.wikipedia.org/wiki/Tetraacetylethylenediamine>

I documented the whole process at:

<http://samhallas.co.uk/collection/retr0bright.htm>

About the hair dye stuff I wrote,"Personally I'd stick with the TAED 
product. Any excess can always be used in your laundry. I don't need any 
lightener for my hair. It's sufficiently silver without any artificial 
help."

Cheers

Sam Hallas, G8EXV

-- 
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus