Talk:Retrobright

Where

Seems that there is a question about this article belong at all, but I think it should also be where. It really isn't a polymer physics question, and not really polymer chemistry, but it does belong with retrocomputing. In that case, I believe it should stay. Gah4 (talk) 01:40, 10 May 2016 (UTC)

Why

Is this seriously warranted an article on Wikipedia? From what i can tell, there has been no empirical scientific testing proving that this is anything other than any other common bleaching. Hydrogen Peroxide bleaches by releasing oxygen radicals, Ozone bleaches by releasing oxygen radicals, UV radiation generates Ozone that bleaches by generating Oxygen radical, "oxy-clean" contains primarily the active ingredient Sodium Percarbonate which turns into Hydrogen peroxide. TAED is an ingredient, but there is no proof that this is an active part. This should be removed. — Preceding unsigned comment added by 80.217.9.14 (talk) 19:48, 19 December 2018 (UTC)

- I'd argue that yes, this page should exist, or be a sub-part of whichever page is relevant: I arrived here because I specifically wanted to know by which process does this retrobright thing works. Where else should I expect to find that information ? (Lapantouflemagic) — Preceding unsigned comment added by Lapantouflemagic (talk • contribs) 11:50, 3 August 2020 (UTC)

Questioning article claims

I think there is a lot of misinformation around the term "RetrObright" or retrobrite mixtures, I will leave here some links to articles that explain why blaming Bromine for the yellowing is questionable, and how these mixtures are arguably worse than sticking with only Hydrogen Peroxide:

https://medium.com/@pueojit/a-look-into-the-yellowing-and-deyellowing-of-abs-plastics-db14b646e0ad

https://www.quora.com/What-is-happening-in-terms-of-a-chemical-process-when-hydrogen-peroxide-is-used-to-restore-discoloured-Lego

I think the information here should be reworked to remove inacuracies from the article to not spread more misinformation that some people leverage to sell this chemical mixture, a mixture that may do more harm than good to collectible pieces of computer and videogame console history. — Preceding unsigned comment added by 190.191.110.48 (talk) 19:40, 15 March 2020 (UTC)

Rewrite

Article tag has been addressed (and article moved). Now it's about the general process of deyellowing old plastics. Tag removed; if you reapply, be sure to explain what is (still) wrong. CapnZapp (talk) 17:20, 26 February 2023 (UTC)

The description of Hydrogen Peroxide as "Oxygenated Water" is very inaccurate and already tagged as unreliable source. Hydrogen Peroxide is H₂O₂, while Oxygenated water is "H₂O + O₂ (dissolved)". More accurate would be the inaccurate "Dihydrogen Dioxide" but the correct term is Hydrogen Peroxide. Suggest removing the "Oxygenated Water" description and substituting H₂O₂ or just leaving it at Hydrogen Peroxide. 8r455 (talk) 04:10, 26 October 2024 (UTC)

That is indeed bogus. That parenthetical was added without comment or specific ref in this edit by User:94.62.59.13. I've removed it (as well as undoing their removal of other content that made the article non-self-consistent. DMacks (talk) 08:23, 26 October 2024 (UTC)

Incorrect source for supposed method of ABS yellowing

The paper "Photodegradation and photostabilization of polymers, especially polystyrene," cited as support for the statement that plastic yellows due to photooxidation, does not mention ABS at all. As the majority of the plastic parts so affected are ABS, this article (focusing on polystyrene) does not support the claim. Okto8 (talk) 02:02, 5 October 2023 (UTC)

"Reversal" misleading?

Isn't it misleading to use the term "reversal" in respect of this process? Granted, the yellowing might be undone, but do the underlying broken long chains actually become repaired, or is the plastic simply bleached of its colour? InfoPirate (talk) 08:25, 24 April 2024 (UTC)

Reliability of sources

This article in general seems to lack sources to any actual scientific testing of the retrobright process. The "Alternatives" section in particular cites just a single self-published YouTube video as it's source. While I don't doubt the The 8-bit Guy is knowledgeable on the topic, I think this article needs more substantial citations than just individuals' personal experiences. TollyH (talk) 01:46, 26 April 2024 (UTC)