why do clear phone cases turn yellow

Best answer

Degradation and dirt

People also ask

For how to clean a yellowed clear phone case. All you need to do is to remove the case from your phone and then clean it with soap and water. A little bit of dish soap will allow you to scrub most of the dirt and marks off the case.

Most of the clear iPhone cases on the market are constructed from a material known as thermoplastic polyurethane, or TPU. This creates a durable and flexible case. But with extended use, many of these clear cases begin to take on a yellow tint due to sun exposure, heat, humidity, and oils from your skin.

The more the silicone, the faster your case will turn yellow. If you’ve had clear cases that either turned yellow right away or took a long time, here are the key factors that can speed up the yellowing process exponentially:

All clear cases have a natural yellow tint to them. The case makers usually add a small amount of blue dye to offset the yellow, making it appear more crystal clear. The materials play a big role in this as well. Not all clear cases get as yellow over time.