Spigen Clear S10+ Case in storage turned cloudy

[rounakr94]

Can anyone tell me why my Spigen Ultra Hybrid (Full transparent case with silicone sides and hard transparent back), turned cloudy when I stored it in its original packaging?

Link to cover: https://www.amazon.com/Spigen-Hybrid-Designed-Samsung-Galaxy/dp/B07MG8NSBB

The cloudy part was only on the silicone sides and not on the hard plastic back. It cleans off with some rubbing alcohol.

I was using a normal black case for around 6months during which the Spigen was inside its packaging and tucked in a corner of my pile of cases.

 

[B. Diddy]

Welcome to Android Central! That part is TPU (thermoplastic polyurethane), not pure silicone: https://www.spigen.com/products/galaxy-s10-plus-case-ultra-hybrid#. Unfortunately, yellowing is pretty common with TPU, and not just from sun exposure: https://ranvoo.com/guide/how-to-remove-stains-from-phone-cases/

 

[rounakr94]

Yellowing is still okay. But it turned opaque. I used it hardly for an hour six months back.
It almost looks like frosted TPU, It was clear previously.
It looks like some sort of sediment forms on the TPU part, if wiped with alcohol or if washed with dish soap it goes away. It almost looks like that the tpu part is reacting to something.

 

[J Dubbs]

Yellowing is still okay. But it turned opaque. I used it hardly for an hour six months back.
It almost looks like frosted TPU, It was clear previously.
It looks like some sort of sediment forms on the TPU part, if wiped with alcohol or if washed with dish soap it goes away. It almost looks like that the tpu part is reacting to something.

I have that same exact case for my pixel and it's never done that. I think you're right, it must be a reaction to something.

 

[rounakr94]

I have uploaded an image of another case.
This is the bundled TPU case that came with my OP6. You can see the same Haze here, its turned opaque in storage.
At this point I think that its just some reaction that causes this. I hope that it doesn't hurt the phone.

Below it is another image with half of the case wiped down.

 

[J Dubbs]

That is definitely strange.... I just looked at my case day before yesterday stored in its box in the closet and it looks perfectly clear.....no different than when I put it in there a year ago. Are there any cleaning chemicals near by? Something is breaking the plastic down ¯\_(ツ)_/¯

 

[rounakr94]

Nope. All of the cases were stored in their boxes.