Re: Retr0bright

From: Hegedűs István <>
Date: Sun, 7 Oct 2012 22:42:57 +0200
Message-ID: <>

I have used it on a C128. The case I have done with the gel (xantan 
gum,glycerin,h2o2 and oxi). Very important is not to use stronger than 6%. 
Someone mentiones 3% which is even safer but slower. I have used the sun as 
UV source and applied a foil on it not to dry (the foil helps a lot!). If 
the gel dries then you will have white areas where the h2o2 becomes stronger 
so be careful! It is very important not to let it dry out (reapply gel every 
hour or more often) ! My result is very good.
Because of this drying problem the keys must be whitened only with the 
liquid version and using UV bulb. Otherwise the letters can fade. I have an 
UVA bulb (black 20W energy saver) and it works fine.
When you whiten the keys you have to use a transparent box in which you have 
the liquid and the bulb lights it from the bottom. This is needed because 
the keys will face down when you put them in the liquid.


-----Original Message----- 
Sent: Sunday, October 07, 2012 9:46 PM
Subject: Re: Retr0bright

On 2012-10-07, at 20:37, Justin wrote:

> I've used it on a bunch of C128DCR parts.  It works well, but is kind of a 
> pain to clean off.  I found that the best way to do it was to disassemble 
> whatever plastic casing or parts completely, coat them in the goo, leave 
> them out in the sun for a couple hours,

Well... in some locations it is quite difficult to find couple hours of 
intensive sunlight. Especially during the months we are currently passing 
through. That leaves a properly chosen artificial UV source as the only 
remaining choice. Just what lamp to use.. Aquarium algae killer? Nail cover 
hardener? EPROM eraser? Money tester? ? They seem to be all different in 
their UV characteristics..


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Received on 2012-10-07 21:00:23

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