[Coco] de-yellowing cases?

[Gabriel Holland]

Clear coat could be used to seal it after retrobriting.  I think there is a clear Krylon Fusion. 


     On Friday, August 21, 2015 10:51 AM, Bill Loguidice <bill at armchairarcade.com> wrote:
   

 My only devil's advocate statement with using chemical methods to de-yellow
cases is that whether Retrobrite or some other technique, it's still only a
temporary solution, and the yellowing does return. Repeated applications
may in fact degrade the plastic.

My opinion is that while it doesn't look great, I'd rather keep my systems
yellowed in order to maintain the structural integrity. The alternative of
course is to get new cases manufactured, but that's almost certainly an
incredibly expensive proposition (not to keep using the C-64 and Amiga as
examples, but they're relevant; the C-64 Kickstarter succeeded, while the
Amiga 1200 one didn't--they're still going to try and proceed with the
project. Many of these newly manufactured cases involve either creating new
molds or recovering the original molds, either of which is wildly expensive
(the upcoming Retro VGS is using old Atari Jaguar molds for its case
design, by the way). I'm sure the CoCo case molds are lost forever.

-Bill

========================================================
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<http://www.armchairarcade.com>
========================================================
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On Fri, Aug 21, 2015 at 10:27 AM, Gabriel Holland via Coco <
coco at maltedmedia.com> wrote:

> I've used retrobrite on a CoCo2 with pretty good success.
> As far as the 1, if it's just dirt, I like using baby wipes or warm water
> with Oxyclean and a toothbrush on my plastics.
>
>
>      On Friday, August 21, 2015 10:22 AM, Bill Traynor <btraynor at gmail.com>
> wrote:
>
>
>  Is there a known working way to fix discoloration on old CoCo cases?
> I'm considering this method on a yellowed CoCo2 case:
>
>
> http://www.retrofixes.com/2013/10/how-to-clean-whiten-yellowed-plastics.html
>
> But what about dirty grey CoCo1 cases, is it possible to restore them
> to new-ish condition?
>
> Cheers
> Bill
>
>

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