How to Remove Yellowing From Plastic | Retrobrite Guide (Short)

Опубликовано: 01 Май 2026
на канале: TutorialGenius.com
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Full video:
How To Remove Yellowing From Plastic | 3% H2O2 | Retrobrite ULTIMATE GUIDE
   • How To Remove Yellowing From Plastic | 3% ...  

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Do you want to restore your yellow plastics back to their original glory? If so, keep watching!
In this video we'll be restoring yellowed plastics back to their original color.

Restoring yellowed plastics is sometimes known as Retro brighting, as it's usually retro items which have become discolored, and we want to brighten them up again.
Retrobriting is a hot topic of debate, but the truth is, very few people have done proper testing on this subject matter, especially observing the results over long periods of time.
I did a lot of experimenting in this video and learned a lot along the way. I have shared some of this experimenting as well as my mistakes so that we can learn from this together.

In this video we'll be discussing:
Why this happens
What types of plastics will this work on?
How to actually restore the plastics (The process)
Something I learned and tried along the way.
How long will this process last?

All with a primary aim of: making the process easy and also keeping things cheap and accessible.

Hydrogen peroxide counteracts the oxidization, because it itself is an oxidizer (an oxidizing agent!). Hydrogen peroxide is one of the best oxidizing agents known to man!
The UV light converts the hydrogen peroxide into highly reactive hydroxyl radicals, which then decompose the problematic substances.

[UV Light Wavelengths]
UVC - 200-280nm (Shortest wavelength. Classed as dangerous rays. These don't penetrate the earths ozone layer.)
UVB - 280-315nm (Mid wavelength. Causes sunburn and skin cancer etc. Classed as burning rays.)
UVA (Longest wavelength - Reaches deep inside tissue and skin, causing aging. Classed as tanning rays)
315-350nm - Uses to cure polymers. Used in printers and some tanning equipment
350-270nm - Blacklight. For bug attraction, sun tanning. etc.
370-400nm - Blacklight blue (BLB). Glow in the dark lighting. Bank note forgery checkers.

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#Retrobrite #Retrobright #Retrobrighting