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Old 08 July 2008, 21:04   #21
Kristian95
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Quote:
Originally Posted by 5h00n4y View Post
H-h-hey!
UV and heat both speed up the decomposition of H2O2 into H2O and O2 and it is during this process that you get the plastic bleached.
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Old 09 July 2008, 00:56   #22
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I'm running the experiment right now. I had to buy a flask of 40% H2O2. Wifie don't use it, 'cause she is brunette.

Here is the "before", standing under my A600 for comparison. Note the A600 is not THAT white as she use to be...

Hope it works.
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Old 09 July 2008, 01:19   #23
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Good luck with this adventure my friend

you know the keyboard has had enough when it turns this colour



I raided that pic from Freds private stash!!!
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Old 09 July 2008, 02:00   #24
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Ahahah, ROTFLOLASTC!
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Old 09 July 2008, 02:01   #25
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Quote:
Originally Posted by rkauer View Post
I'm running the experiment right now. I had to buy a flask of 40% H2O2. Wifie don't use it, 'cause she is brunette.

Here is the "before", standing under my A600 for comparison. Note the A600 is not THAT white as she use to be...

Hope it works.
that A500 keyboard is horrible
that's not yellowed...that's wormy

I think you will need a full factory production of h2o2 to bleach that keyboard




bye
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Old 09 July 2008, 02:14   #26
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Quote:
Originally Posted by Kristian95 View Post
@laser

You refer to the keyboard experiment? I don't think anyone has checked to see whether the lettering survives.
I will make the experiment using a PC yellowed keyboard

I will insert one yellowed key on a small flask....also I will try different proportions h2o2 /water

btw,

if rkauer can bleach his super yellowed A500 keyboard I will be monk
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Old 09 July 2008, 02:25   #27
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All this bleaching...i just have to share a joke with you all.

What do you get if you turn a blonde upside down?

A brunnette with smelly breathe!
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Old 09 July 2008, 02:27   #28
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I don't want that kb, anyway. I take a dead A500 for a friend.

But the bloke is a total pig, believe me! Not only the entire A500 is the same colour, but inside I find:

- Dead 'rouches;

- Dead spiders;

- Tons of dust and dry mud, among other disgusting things...

Totally rusted shield, broken down floppy... Surprisingly, the A500 itself still working!

Waiting for another A500 (main board dead), but in perfect mint condition, to assemble (more) one perfect A500.
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Old 09 July 2008, 17:17   #29
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Letter Soup recipee:

Some peroxide, keyboard keys, microwave hooven... to speed up the process.
Heat up for 2 minutes at 700W.
This could replace 72 hours of wait.
(Not tested...yet!)
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Old 09 July 2008, 18:39   #30
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I'm not sure I'd heat my plastic components that much. The heat alone could possibly warp the plastic out of shape but then again I'm sure you were just joking
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Old 10 July 2008, 03:04   #31
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First day impression: after heat the jar with 3 caps inside (and hydrogen peroxide) into the microwave (1 minute each time, I don't want to warp anything), nothing, niente, nada.

Let the jar "staring a the winter sun" (poetic, huh?), some slightly "clarification"... Or just the caps are more clean...
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Old 10 July 2008, 04:03   #32
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I'm shocked!

I take the jar to inside home (not a good thing leaving it outside with dogs and cats).

Opened the flask, wash the caps with normal water and examine: hmm... still yellow... but my eyes catches a difference!

So I put the caps back in the keyboard, and for my surprise, it works!

Can you guys tell me what caps I did the test?
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Old 10 July 2008, 04:11   #33
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Super! and not a dent on the arrow, alt label or "space label" either I foresee many more Amiga discoloration rescues now
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Old 10 July 2008, 04:36   #34
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Quote:
Originally Posted by rkauer View Post
I'm shocked!

I take the jar to inside home (not a good thing leaving it outside with dogs and cats).

Opened the flask, wash the caps with normal water and examine: hmm... still yellow... but my eyes catches a difference!

So I put the caps back in the keyboard, and for my surprise, it works!

Can you guys tell me what caps I did the test?
!!!!Amazing!!!!

the things one can do with bit of bleach, a microwave and sunlight !!!!!

!!!

I wonder if further aggitation could improve the speed of the process... anyone want to try this solution warmed up in a bubble tank with added UV Light!?

hell you can get that setup cheap enough from any tropical fish store.... or ebay
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Old 10 July 2008, 04:49   #35
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It's ironic how UV is first the bad guy and then the merry helper hehehe
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Old 10 July 2008, 05:09   #36
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Now we just need not spread the idea or the peroxide price will raise!
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Old 10 July 2008, 05:12   #37
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BTW...

Quote:
Originally Posted by laser View Post
I will make the experiment using a PC yellowed keyboard

I will insert one yellowed key on a small flask....also I will try different proportions h2o2 /water

btw,

if rkauer can bleach his super yellowed A500 keyboard I will be monk
@Laser:

In what monastery you will enter? The monks will accept you?
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Old 10 July 2008, 05:12   #38
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rkauer,

it seems that works...but the keys are not 100% white like new....still a bit of yellow..anyways good work

let's try this experiment:...try to increase the h202 concentration to something like 30% and wait a cup of days..then post new pics
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Old 10 July 2008, 05:19   #39
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I'm using 40% H2O2 right now. Remember this is only one day job! More a couple of days and the keys will become minty again (I hope).

Sorry for the joke, I can't help myself.

But for all matters, this experiment is now done.

Now I will start with real needed hardware. I have one A600 and one 1200D with slightly yellow key caps.

My other A1200 is in a DIY tower, using a mint A2000 keyboard.
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Old 10 July 2008, 05:33   #40
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Ahhhh TC is gonna love this one
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