dave.g4ugm at gmail.com
Sat Aug 22 13:13:53 CDT 2015
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Pete
> Sent: 22 August 2015 19:05
> To: General at classiccmp.org; Discussion at classiccmp.org:On-Topic and Off-
> Topic Posts <cctalk at classiccmp.org>
> Subject: Re: De-yellowing
> On 22/08/2015 13:50, Tothwolf wrote:
> > On Sat, 22 Aug 2015, Dave G4UGM wrote:
> >> All the techniques discussed so far involve using a "bleach" of some
> >> kind and possibly UV light. Some use other materials so you have a
> >> gell which makes it easier to apply.
> >> From what I have read yellowing usually/often/always re-occurs..
> > Hydrogen Peroxide, not bleach.
> Hydrogen peroxide *is* a bleach, as any chemist can tell you. Never heard
> "peroxide blonde"?
I should probably have said a ""peroxide based bleaching agent" as most
folks assume "bleach" means "chlorine based bleach" which is not what is
being used here.
However there are several variations on this theme and several slightly
different chemicals have been used as the bleach...
> Pete Turnbull
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