why do phone cases get yellow

Why Phone Cases Yellow: A Complete Guide

Have you ever seen your phone case turn yellow over time? You're not alone C many mobile phone users have experienced this phenomenon. It's not just a cosmetic issue, as the yellowing process can affect the durability and longevity of your phone case.

In this article, we will discuss why phone cases get yellow and what you can do to prevent it.

Understanding the Yellowing Process

The yellowing of phone cases is a natural process that happens due to UV exposure over time. The UV radiation causes the material's chemical structure to break down, resulting in the phone case turning yellow. This process is usually faster on clear or light-colored cases, which make the changes more visible.

In addition to UV exposure, factors like air quality, heat, and humidity can speed up the yellowing process. Smoking, cooking, and general air pollution can deposit particles on the surface of your phone case, which can cause discoloration.

Why Clear or Light-Colored Cases?

Clear or light-colored phone cases are made from transparent plastic or silicone, which makes the yellowing more noticeable. Dark-colored cases may also yellow over time but are less noticeable, and their discoloration is mainly due to the same reasons.

The Material's Role

The material from which phone cases are made of also plays a role in how quickly they yellow. Thermoplastic polyurethane (TPU) is a popular material used in phone case manufacturing, which is both flexible and durable. However, it is also prone to yellowing due to UV exposure.

On the other hand, polycarbonate (PC) is a more rigid material commonly used for phone cases, which is more resistant to UV exposure than TPU. It is also less prone to yellowing but is more brittle, which makes it more sensitive to cracks and scratches.

Preventing Yellowing

While it is impossible to prevent your phone case from yellowing completely, certain measures can slow the process down. Here are some tips to help you do that:

1. Avoid UV Exposure

Try not to expose your phone case to direct sunlight or any other UV sources for long periods. When using your phone outside, keep it in the shade or use a sunshade. Avoid leaving your phone in your car for too long, especially during the summer months, as this can speed up the yellowing process.

2. Use Darker-colored Cases

While clear or light-colored cases look great, they tend to yellow faster. Opting for darker colors like black, navy, or dark green can help you hide discoloration, giving your phone case a longer lifespan.

3. Clean Your Regularly

Cleaning your phone case regularly helps prevent discoloration caused by air pollution and other factors. Use a soft cloth or a sponge and gentle soap to clean your phone case wholesale at least once a week. Avoid using harsh cleaning chemicals or bleach, as this can damage the material and speed up yellowing.

4. Use a Protective Screen Film

Using a protective screen film not only protects your phone's screen from scratches but also reduces UV exposure. The screen film blocks the UV rays from reaching the phone case, slowing down the yellowing process.

Conclusion

Yellowing phone cases are an inevitable part of owning a phone. However, by following the tips we've listed above, you can slow down the process and extend the lifespan of your phone case. Remember, prevention is always better than cure. It's always better to take measures to prevent your phone case from yellowing in the first place than to try to reverse the process after it has happened.

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