
Keeping your plastic phone case clean can be a challenge. With daily use, it can quickly become dirty and discoloured. Luckily, there are several ways to clean a plastic phone case and prevent it from turning yellow. The first step is to remove the case from the phone. Then, depending on the severity of the discolouration, you can use a combination of household cleaners such as dish soap, baking soda, white vinegar, hydrogen peroxide, or bleach. For regular maintenance, a mixture of warm water and dish soap can be used. For tougher stains, a combination of white vinegar and baking soda can be applied to the case before scrubbing it with a toothbrush.
How to Whiten Plastic Phone Cases
| Characteristics | Values |
|---|---|
| Prevention | Keep the case away from sunlight to prevent yellowing |
| Regular cleaning | Wash the case with soap and water at least once a week |
| Tough stains | Use rubbing alcohol or baking soda |
| Soaking | Soak the case in a solution of vinegar and baking soda, or bleach and water |
| Drying | Air dry the case completely before putting it back on the phone |
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What You'll Learn

Soak in a bleach solution
To whiten a plastic phone case by soaking it in a bleach solution, follow these steps:
Firstly, remove your phone from the case and set it somewhere away from the cleaning area. It is important to wear gloves when handling bleach. Next, fill a container with two cups of hot water (not boiling). Add a teaspoon of bleach to the water and stir the solution for a couple of minutes.
Once the solution is mixed, submerge the plastic phone case in the bleach water. Allow the case to soak for around 20 minutes. You will notice the colour change as the bleach removes the stains. After soaking, remove the case from the solution and wash it with mild soap and water to eliminate any remaining bleach solution. Finally, rinse the case under running water and dry it with a clean towel.
It is important to note that bleach contains harsh chemicals that can potentially discolour your phone case or clothing, so use it with caution. Always test the bleach solution on a small, inconspicuous area of the case before soaking the entire case. Additionally, do not mix bleach with other chemicals like hydrogen peroxide, as it can destroy some phone cases.
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Use a toothbrush and soapy water
To whiten a plastic phone case using a toothbrush and soapy water, start by removing your phone from its case and setting it somewhere far from the water. Next, prepare a mixture of warm water and mild dish soap. Stir it until the water becomes soapy. You can use any dish soap you have, but it's best to use a mild soap without phosphates, fragrances, dyes, or abrasives. Avoid harsh cleaners like ammonia, bleach, or glass cleaners.
Once you have your soapy water mixture, dip a clean toothbrush into it and scrub the case. Brush the entire case, paying extra attention to spots with noticeable stains. Try scrubbing around stained areas in a circular motion, and be sure to get the brush into the smaller spots, such as around the camera and charge port openings.
After scrubbing the case, rinse it off in clean water. Hold the case under running water in your sink, making sure to eliminate all soap residue, including in hard-to-reach spots. If there is any debris left on the case, scrub it again with the toothbrush, applying more soapy water as needed.
Finally, dry the case with a clean towel. Shake off the excess moisture, then wipe the entire case from front to back. Try to remove as much remaining moisture as possible to speed up the air-drying process. Place the case in a well-ventilated area and let it air dry completely before putting it back on your phone.
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Try a baking soda paste
If your plastic phone case has turned yellow or has tough stains, you can try using a baking soda paste to whiten it. First, remove your phone from the case and set it aside. Place the case in the sink or on a clean towel, with the stained part facing up. Sprinkle a liberal amount of baking soda onto the stained areas of the case. You can use about two tablespoons of baking soda, or just enough to cover the surface of the stains.
Next, grab an old toothbrush and dampen the head with water. Start scrubbing the baking soda into the stains in a circular motion. Be patient and work the powder in thoroughly until it forms a paste. Make sure to get into all the nooks and crannies of the case, such as the edges and openings. If the toothbrush starts to dry out, simply dampen it with more water.
Once you're finished scrubbing, rinse the case under running water to remove the baking soda paste. Flip the case and repeat the process on the other side. After you've rinsed off all the baking soda, dry the case with a microfiber cloth and let it air dry completely before putting your phone back in the case.
If the baking soda paste doesn't completely remove the stains, you can try adding a few drops of bleach to water and rinsing the case with this solution. However, be cautious as bleach can stain your phone case, and never use it in full concentration. Always dilute it with plenty of water first.
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Apply white vinegar
To whiten a plastic phone case with white vinegar, you'll first need to detach the case from your phone. This will give you full access to the innermost corners on both sides of the case. Once the case is removed, you can begin the cleaning process.
Get a bowl and pour in one cup of white vinegar. Add two tablespoons of baking soda for a deeper clean. Use something to weigh down the case and fully submerge it in the solution. Let the case soak for a minimum of two hours.
After soaking, remove the case from the solution and wash it off in clean water. You can also use a soft cloth or sponge to gently scrub the case, focusing on any yellowed areas. Rinse the case thoroughly with water and dry it completely.
If you don't have baking soda, you can simply soak your phone case in white vinegar for 15 to 20 minutes. Alternatively, mix equal parts vinegar and water and soak your case in this solution for 15 to 30 minutes.
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Clean with rubbing alcohol
Rubbing alcohol, or isopropyl alcohol, is a great option for cleaning and whitening your plastic phone case. It's a gentle solvent that can effectively remove dirt, grease, and stains without damaging the plastic. Here's a step-by-step guide on how to do it:
Start by mixing a solution of equal parts rubbing alcohol and water. You can adjust the ratio slightly if your case is extremely dirty or stained. Pour the mixture into a small bowl or container. Take a clean, soft cloth and dip it into the rubbing alcohol solution. Squeeze out the excess liquid so that the cloth is damp but not dripping wet. Gently rub the damp cloth over the entire surface of your phone case. Pay extra attention to any particularly dirty or stained areas, and apply a little more pressure as needed. The rubbing alcohol will help dissolve and lift away any grime or discoloration.
If your case has stubborn stains or yellowing, you can use a gentle, non-abrasive toothbrush to gently scrub the affected areas as you apply the rubbing alcohol. Rinse your phone case under warm running water to remove any remaining rubbing alcohol and dirt. Alternatively, you can use a damp cloth to wipe down the case and remove any residue. Dry your phone case thoroughly with a soft cloth. Make sure no water droplets are left on the case, as this could lead to water spots or streaking.
Finally, admire your freshly cleaned and whitened plastic phone case! Rubbing alcohol is a great, gentle method for bringing life back to your phone case and making it look new again. For regular maintenance and to prevent stains from setting in, try to clean your phone case with a rubbing alcohol wipe or a damp cloth weekly. This will help keep your case looking its best and extend its lifespan.
Please note that while rubbing alcohol is generally safe for plastic, it's always a good idea to test it on a small, inconspicuous area of your case first to ensure it doesn't cause any discoloration or damage.
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Frequently asked questions
There are several ways to whiten a plastic phone case. One method involves using a mixture of white vinegar and baking soda. Simply soak your case in a solution of one cup of white vinegar and two tablespoons of baking soda for at least two hours, then rinse it off. Alternatively, you can use a mild dish soap and warm water to scrub your case with a soft cloth or toothbrush, paying extra attention to any stained areas. Remember to dry your case completely before putting it back on your phone.
Household products such as baking soda, dish soap, and rubbing alcohol can be used to whiten your plastic phone case. You can make a baking soda paste by mixing it with water and scrubbing your case with a toothbrush. For tougher stains, try using rubbing alcohol on a microfiber cloth to scrub the affected areas.
Regular cleaning is key to preventing your plastic phone case from turning yellow. Wash your case with soap and water at least once a week to prevent stains from forming. Avoid exposing your case to direct sunlight, as this can contribute to discolouration.
While natural methods are recommended, some chemicals can be used as a last resort. These include hydrogen peroxide and bleach. However, use caution as these chemicals can potentially damage or discolour your phone case. Always test on a small, inconspicuous area first and never mix these chemicals together.











































