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Old 16th November 2018, 12:01 AM
reillyd reillyd is offline
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Just discovered this thread, and excited at the prospect of whitening G1 toys.
But its a little hard to follow - one link said UV exposure was the cause, so wouldn't putting your hydrogen peroxide bath in the sun discolour the parts that aren't yellowed?

Will it still work in peroxide bath in the absence of sunlight? If you left it longer or more concentrated?
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Old 16th November 2018, 09:21 AM
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UltraMarginal UltraMarginal is offline
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as far as I understand (I've never done it myself) putting the Peroxide bath in the sun will activate the solution making the process much faster.

I do believe there is a caveat with this in that if you expose your plastic to the active peroxide for too long you will (I think) damage the surface of the plastic.

yellowing by exposure to sunlight is something that happens over months/years, a couple hours exposure will have no noticeable effect on the parts.

I believe you can leave the bath in the dark but the process will then take days
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Old 17th November 2018, 12:42 PM
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CHILENO20 CHILENO20 is offline
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If you're in no rush to de-yellow your item than it doesn't need to be in direct sunlight to work. Just de-yellowed my VF-1S and currently doing my VF-1A, all the while it never was in direct sunlight. Patience goes a long way.
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