50 shades of yellow. Putting the Retrobright technology to the test

A couple of weeks ago, a good article was published on Habré with an explanation of the chemical processes that occur during yellowing and bleaching of ABS plastic. The author presented the theory in an accessible way, but I would like to supplement it with practice. Coincidentally, about a year ago, I started my own color restoration experiments. The post will be primarily of interest to lovers of retro iron, but not only to them, since there are products made of such plastic in almost every home. The material turned out to be very large, so I will split it into two parts.





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Fig.  1. The drive was released in 2003.  Apparently stood in the sun for a long time
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Fig.  2. Packages do not allow peroxide to evaporate
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Fig.  3. After a couple of hours, a difference is noticeable
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Fig.  4. If the air temperature is above 20 ° C, heating is not necessary.
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Fig.  5. The yellowness is gone!
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Fig.  6. Almost color fan
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. 7. Quartz —  , TPX — , Glass —  , PS — , PVC — , PMMA —  (). : 
http://www.goodfellow.com/larger-quantities/polymers/tpx-characteristics/
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Fig.  18. This article has a table describing the compatibility of different materials with peroxide: habr.com/ru/post/501310/
. 18. : habr.com/ru/post/501310/

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Fig.  19. You can also glue the plastic eyelets to the bottom of the container and tie the parts to them.
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Fig.  20. I will not say that the yellowness has gone 100%, but 90 - perhaps
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Fig.  21. Nothing lasts forever under the moon ...
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Fig.  22. It would be shortsighted to rely on the sun alone in our area!
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  4. UV radiation can be replaced by heating, but there is an increased risk of damaging stickers and decals. The use of a water bath is highly recommended.





  5. Also, due to heating, you can make the parts lighter than they were originally. This can be useful if you are looking for aftermarket replacement parts.





I will be glad to answer your questions in the comments. I will also listen to criticism, especially since this is my first publication on Habré. Thanks for attention!








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