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Discoloration of Keychains/Charms?Discoloration of Keychains/Charms?Ask MFC

GollyGeeItsBooGollyGeeItsBoo6 months ago
Has anyone ever noticed some discoloration of keychains and charms before?

I was going through some old things that I had put away a while back (due to lack of space) and noticed that a lot of my keychains have changed color. It is very specific to the ones made of metal and the images on top having a yellowish/brownish tint. I live in a smoke free home. But where they were stored it is possible it could have gotten quite warm in the room.

(Please excuse the one giant long hair XD)
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https://static.myfigurecollection.net/upload/pictures/2020/07/19/2478381.jpeg
https://static.myfigurecollection.net/upload/pictures/2020/07/19/2478382.jpeg
https://static.myfigurecollection.net/upload/pictures/2020/07/19/2478383.jpeg


The images don't even do it justice, it is much darker in person. Has anyone else ever seen this before? Is there a way to fix them?
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GollyGeeItsBoo SHSL Saniwa
View spoilerHide spoilerdarkfader6 months ago#80584498I once bought some second-hand but probably unused ones. They were also yellow like that. It's a little sad this material just ends up like this.
I have not tried to fix it.
plasticizer6 months ago#80584586Plastics naturally degrade over time despite keeping it in the best of environments. Plasticizers and other additives in plastics leech out to the surface, oxidizes and discolor it. Although I'm not 100% sure what the material of the keychains are, it could be bromine (a fire retardant additive) that could be to blame for the discoloration.
There are tons of tutorials online now, but the common solution in the video game console collecting community is to use Hydrogen peroxide bath/cream and UV light to get rid of the discoloration. Some people use standalone UV lights, others use UV nail curing station, others simply use the sun's natural UV.
noctisity6 months ago#80587759If I'm not mistaken, those types of metal keychains/charms come with a clear coating on it. That coating tends to yellow over time. I've had it happen to many of my older pins and metal charms. Unfortunately it happens with old age since the coating deteriorates eventually.tharglet6 months ago#80587815Can also confirm this keychain type is prone to yellowing - had a few touristy keychains like this, and the ones I've had yellowed eventually. Unfortunately can't help with fixing it.lesser-robot-cat6 months ago#80588189A lot of plastics and resins yellow over time, and there's really not much you can do about it. At the very least, it's probably something in the charms themselves, not anything you did that caused them to age.


Thank you guys so much for all your input! I didn't realize that most of these keychains are so old! I'm glad that it is nothing that I did but also disappointed that I probably can't fix it. Especially since the metal ones with the clear coating tend to be nicer looking, in my opinion. But I guess that's just how it goes, time for some new ones!
6 months ago
GollyGeeItsBoo SHSL Saniwa
Lilliia6 months ago#80587909I have the komaeda one as well that I bought 5 years ago and I just checked to see if it's also yellowish but I can't really tell because I don't remember what it looked like when I first got it.
Here it is:
View spoilerHide spoilerhttps://i.ibb.co/Przm5p6/1595231035336.jpg

I also bought mine 5-6 years ago. I didn't realize its been that long! But yours looks similar to mine. He was very white and clean looking when I first got him. Bummer ):
6 months ago
A lot of plastics and resins yellow over time, and there's really not much you can do about it. At the very least, it's probably something in the charms themselves, not anything you did that caused them to age.
6 months ago
Salcilia ᵔᴥᵔ
I have the komaeda one as well that I bought 5 years ago and I just checked to see if it's also yellowish but I can't really tell because I don't remember what it looked like when I first got it.
Here it is:
View spoilerHide spoilerhttps://i.ibb.co/Przm5p6/1595231035336.jpg
6 months ago
Can also confirm this keychain type is prone to yellowing - had a few touristy keychains like this, and the ones I've had yellowed eventually. Unfortunately can't help with fixing it.
6 months ago
If I'm not mistaken, those types of metal keychains/charms come with a clear coating on it. That coating tends to yellow over time. I've had it happen to many of my older pins and metal charms. Unfortunately it happens with old age since the coating deteriorates eventually.
6 months ago
plasticizer very mild
Plastics naturally degrade over time despite keeping it in the best of environments. Plasticizers and other additives in plastics leech out to the surface, oxidizes and discolor it. Although I'm not 100% sure what the material of the keychains are, it could be bromine (a fire retardant additive) that could be to blame for the discoloration.

There are tons of tutorials online now, but the common solution in the video game console collecting community is to use Hydrogen peroxide bath/cream and UV light to get rid of the discoloration. Some people use standalone UV lights, others use UV nail curing station, others simply use the sun's natural UV.
6 months ago
darkfader ⱠØⱠł₵Ø₦
I once bought some second-hand but probably unused ones. They were also yellow like that. It's a little sad this material just ends up like this.
I have not tried to fix it.
6 months ago
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