[Coco] retrobright

[Zippster]

My guess would be they urned yellow from being exposed to something being given off
by something else they were stored with / in (some other plastic/wood/cardboard etc.).
Or maybe something stored in a neighboring locker emitting fumes, etc.

- Ed

> On Jan 9, 2015, at 7:56 AM, Josh Harper via Coco <coco at maltedmedia.com> wrote:
> 
> thanks guys for ur help
> what I don't  understand is why  turned yellow in the first place  when I put them in a climate controlled storage  they were white  they was left in storage maybe 2 years now there yellow
> ive gotten a few xoxos of ebay recently  that are the same model and was made  in the same time frame  and there  white as can be  yellowing sucks
> and no none of my stuff has never been in direct sunlight
>        From: Bill Loguidice <bill at armchairarcade.com>
> To: Gabriel Holland <yell0w_lantern at yahoo.com>; CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
> Sent: Friday, January 9, 2015 7:40 AM
> Subject: Re: [Coco] retrobright
> 
> That is the main reason why I've never bothered to do it to any of my
> equipment. It's relatively common (but not universal) for there to be a
> re-occurrence of yellowing. I'm more concerned about the fragility of the
> plastic with repeated applications than the discoloring. I've received
> certain vintage equipment that wasn't retrobrited that had brittle, cracked
> plastic, and that's a huge pain.
> 
> -Bill
> 
> ===================================================
> Bill Loguidice, Managing Director; Armchair Arcade, Inc.
> <http://www.armchairarcade.com>
> ===================================================
> Authored Books
> <http://www.amazon.com/Bill-Loguidice/e/B001U7W3YS/ref=ntt_dp_epwbk_1> and
> Film <http://www.armchairarcade.com/film>; About me and other ways to get
> in touch <http://about.me/billloguidice>
> ===================================================
> 
> 
> 
> On Fri, Jan 9, 2015 at 8:24 AM, Gabriel Holland via Coco <
> coco at maltedmedia.com> wrote:
> 
>> Yes, the yellowing can return in time.  The common wisdom on Lemon64 is to
>> use a UV proof clear spray sealant.
>> --------------------------------------------
>> On Fri, 1/9/15, Michael Rowen <mike at borncoco.com> wrote:
>> 
>>   Subject: Re: [Coco] retrobright
>>   To: "Josh Harper" <allencoco at yahoo.com>, "CoCoList for Color Computer
>> Enthusiasts" <coco at maltedmedia.com>
>>   Date: Friday, January 9, 2015, 8:20 AM
>> 
>>   You can search this list's archives
>>   for in depth conversations about all of the questions you're
>>   asking. Many have used it with good results. Others report
>>   that discoloration returns in time. You can also google
>>   search for retrobright, which has many discussions about
>>   best formulas. I have good results from dish detergent &
>>   a magic eraser.
>> 
>>   Cheers,
>>   -Mike
>> 
>> 
> 
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