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How to Clean TPU Phone Case?


In this digital age, our smartphones are not just communication devices; they’re our lifelines to the world. We purchase high-quality phone cases to protect our cherished gadgets. One popular choice is the TPU (Thermoplastic Polyurethane) phone case. They are slim, durable, and offer excellent protection.

However, over time, you might notice that your beloved TPU phone case has taken on an unsightly yellow hue. Fear not, for in this comprehensive guide, we will walk you through “how to clean TPU phone case” effectively and restore its original glory.

how to clean tpu phone case

Why Do TPU Cases Turn Yellow?

Before we delve into the cleaning process, it’s essential to understand why TPU cases turn yellow. TPU is a fantastic material known for its flexibility and resistance to wear and tear. However, exposure to various environmental factors can cause it to yellow over time. Some common culprits include:

UV Rays: Prolonged exposure to sunlight can accelerate the yellowing process.

Oxidation: Oxygen in the air can react with the TPU material, leading to discoloration.

Dirt and Grime: Everyday dust and dirt particles can accumulate on the case, making it appear yellowish.

– Natural Oils: The oils from your hands can transfer to the case and contribute to yellowing.

How to Clean TPU Phone Case Step by Step

Cleaning your TPU phone case is a straightforward process that can breathe new life into your accessory. Follow these steps for a quick and effective cleaning:

Step 1: Remove Your Phone

Begin by carefully removing your phone from the TPU case. This ensures you can clean the case thoroughly without damaging your device.

Step 2: Gather Supplies

You’ll need a few supplies to clean your TPU case effectively:

– Mild dish soap

– Warm water

– A soft-bristle toothbrush or a microfiber cloth

– Baking soda (optional)

– A small bowl

Step 3: Create a Cleaning Solution

Fill a small bowl with warm water and add a few drops of mild dish soap. If your case is particularly yellowed, you can mix in a pinch of baking soda for extra cleaning power. Stir the solution until it’s well mixed.

Step 4: Scrub the Case

Dip the soft-bristle toothbrush or microfiber cloth into the soapy water mixture. Gently scrub the entire TPU case, paying extra attention to yellowed areas. Use circular motions to lift away dirt and discoloration. Be sure not to use excessive force, as TPU is a delicate material.

Step 5: Rinse and Dry

Once you’ve cleaned the case to your satisfaction, rinse it thoroughly under warm running water. Ensure that all soap residue is removed. Pat the case dry with a clean, lint-free cloth or paper towel.

Step 6: Reassemble Your Phone

Once the case is completely dry, reassemble your phone into it. Your TPU phone case should now look considerably cleaner and closer to its original color.

FAQ About Cleaning TPU Case

1. Do All TPU Cases Turn Yellow?

Not all TPU cases turn yellow, but it’s a common issue with this material, especially when exposed to UV rays and other environmental factors. Regular cleaning and proper care can help prevent or delay yellowing.

2. How Do I Make My Yellow TPU Case White Again?

To restore a yellowed TPU case, follow the cleaning steps mentioned earlier. If the yellowing is severe and doesn’t improve with cleaning, consider purchasing a new case.

3. How Do I Stop My TPU From Turning Yellow?

Preventing yellowing involves minimizing exposure to UV rays and regularly cleaning your TPU case. You can also use a UV-resistant clear coat spray to provide an extra layer of protection.

4. What Case Does Not Turn Yellow?

Cases made from materials like silicone, leather, or hard plastics are less prone to yellowing. Consider these alternatives if you want a case that maintains its color longer.


In conclusion, your TPU phone case, despite its yellowed appearance, can be rejuvenated with a little care and attention. Cleaning it regularly and taking preventive measures against yellowing will help extend the life of your case and keep your phone looking stylish. So, don’t let that yellow hue hold you back—follow our guide on “how to clean a TPU phone case” and enjoy your pristine accessory once more. Your phone deserves it!

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