So I bought a few blister packs last week and there’s a Fossil one I have an issue with. The plastic casing is yellow. Is that only due to age or some came from the factory that way(most unlikely)?
I thought it didn’t look right, but maybe I’m just being paranoid. Then I remembered old NES/SNES systems turning yellow as well so maybe this is more common than I think.
There’s a similar one I found on ebay.
That’s just a side effect of plastic, I’ve definitely seen it before.
smokers
are jokers
Definitely from smoking. My dad’s cousin was a chain smoker before he died and we took a large roll of bubble wrap from his apartment and it was this same color as that. Didn’t realize it until we got home with it but boy did it stink.
Fun fact: Fast food is a bigger killer than smoking ever was.
Yellowing of plastic is not always due to smoking. Main cause is UV light. The plastic they use for packages like this is very cheap and burns easily, due to the addition of bromine to the mix it melting point is lowered but bromine is highly reactive to UV light and turns yellow over time. This blister is mostlikely the one that always was on front in someone store and got hit with the most UV light.
I am a non smoker, in a smoker household. Nobody ever smoke in or near my room and yet I still got yellow plastics on my shelves from my 3rd-party Dreamcast packaging. Why? Cheap plastic.
It’s exactly that 
The NES case is made with cheap plastic mixed with bromine.
I believe it; but at least second hand fast food doesn’t cause obesity or diabeetus.
ETA: It still can have a fairly bad stank though. Not quite as lingering as smoke from what I’ve seen.
Based on this thread: www.hobbytalk.com/bbs1/961-hot-wheels-general-discussion/278137-yellowing-blister-packs.html
Seems like the late 90s to early 00s a bad patch of plastic can turn yellow overtime. Too much exposure to heat can also be a problem.
Ha, those were my blisters. Bought them 3-4 years ago and the one came like that. I didn’t include that one in my price because I wasn’t sure what was going on with it.
I guess it’s probably a manufacturing defect!
Seems like it’s just the exterior plastic though; nothing should be wrong with the pack.