Has your transparent phone case started to turn an unsightly yellow? Discover the science behind why plastic changes color and learn how to clean it effectively.
Smartphone users who chose transparent cases to showcase their phone’s design have likely noticed that the clear plastic eventually turns yellow. Despite its clear appearance, the plastic used in these cases actually has a natural yellow color. However, manufacturers add a blue tint to make it see-through. Over time, this tint fades away when the case is exposed to UV light, natural oils, and sweat from the body.
Fortunately, there are ways to restore the transparent look of your phone case. Here are some expert tips to make your case look brand new again. A Reddit user recently shared an image of a yellowed phone case, stating that this will inevitably happen to any clear case. However, with proper cleaning techniques, you can remove the off-putting yellow color.
Why does a clear phone case turn yellow? Most clear smartphone covers are made of silicone, acrylic, or thermoplastic polyurethane (TPU). While all three materials are durable, they do tend to discolor when exposed to UV light. Ecmco Industrial Plastics explains that American-made acrylic is particularly prone to yellowing in sunlight. TPU, specifically polycarbonate, is a more shatter-resistant alternative to acrylic and is likely the go-to material for manufacturers. However, like acrylic and silicone, TPU can yellow due to oxidation reactions caused by UV light, sweat, and oils.
How to clean a yellow phone case? ESR, a company specializing in cases for electronic devices, recommends a simple and affordable solution. Mix a few drops of dish soap with warm water and gently scrub the case using a toothbrush. Pay attention to cleaning the tiny cutouts and notches on both the interior and exterior of the case. Rinse the case thoroughly and dry it with a soft cloth. You can also let it air dry for about an hour. Repeat this cleaning process once or twice a week if possible.
Another option is to use baking soda. Simply apply the powder directly to the case and scrub it with a wet toothbrush. Rinse the case and dry it with a soft cloth. Allow it to air dry before using it on your phone. Alternatively, you can use rubbing alcohol. Pour some alcohol into a spray bottle or use a cloth soaked in alcohol to wipe down the case. Then, use a soft dry cloth to remove the alcohol and let it air dry for an hour before using.
For those seeking a homemade cleaning recipe, some recommend a mixture of baking soda, lemon juice, and vinegar. Create a paste by combining baking soda and lemon juice, then apply it to the case using a toothbrush. In a separate bowl, mix vinegar with water. Let the case sit in this mixture for about an hour, then rinse it off.
By following these cleaning methods, you can restore your yellowed phone case to its original transparency. Say goodbye to the unsightly yellow color and enjoy a clean and fresh-looking phone case once again.
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