
Glossy phone cases are eye-catching and vibrant, but they have their downsides. They are slippery, attract fingerprints, and scratches are more noticeable on them. If you want to get rid of the gloss on your plastic phone case, you can use a variety of tools, such as sandpaper, a buffing wheel, or a dishwashing sponge, to dull the finish and achieve a matte look.
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What You'll Learn

Use a fine-grit sandpaper to dull the plastic
If you want to give your glossy phone case a matte finish, you can use fine-grit sandpaper to dull the plastic. This method will make the surface of your phone case smoother but less shiny.
To get started, you'll need to choose the right sandpaper grit. A higher grit number indicates that the sandpaper is finer. For dulling plastic, you should opt for a very fine sandpaper, such as 1500 grit or finer if you can find it.
Once you have your sandpaper, you can begin sanding your phone case. Sand the entire surface of the case, applying even pressure as you work. You may need to spend extra time on areas with deeper scratches or imperfections. Remember to sand with the grain of the plastic, not against it, to achieve the smoothest finish.
After sanding, you can further refine the finish by applying a small amount of toothpaste to the case and gently buffing it with a soft cloth. This will help to reduce any remaining scratches and create an even duller surface.
Finally, clean your phone case with a mild soap and water solution to remove any debris or residue from the sanding process. Make sure to remove all soap residue and dry your case thoroughly before putting it back on your phone.
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Try a 3M kitchen sponge with an abrasive pad
To dull a gloss plastic phone case, you can try using a 3M kitchen sponge with an abrasive pad. 3M offers a range of Scotch-Brite™ scouring pads and sponges that are designed for cleaning dirty, greasy pots and pans. These sponges can also be used to clean your phone case and dull the glossy finish.
The Scotch-Brite™ HEX series of scouring pads feature a unique POWER DOT technology that helps to cut through tough, baked-on, or burnt-on soils. The pattern of abrasive dots allows for quicker rinsing and minimizes trapped food particles, making it easier to clean. The hexagon shape of the pads makes them easy to hold and provides two extra edges for cleaning hard-to-reach areas.
The Scotch-Brite™ Low Scratch Scour Pad 2000HEX is a two-in-one scouring pad with a raised medium-duty power dot side that scours away tough messes. The dark blue scour pad side removes fine food soil and gives a spotless finish. This scour pad is designed to leave fewer visible scratches.
Another option is the Scotch-Brite™ Low Scratch Scour Sponge 3000HEX, which is a tri-layer cleaning tool. It has a heavy-duty power dot side, a medium-duty scour pad side, and a foam sponge layer in the middle that carries soap and water. This sponge is designed to cut through tough messes while also absorbing spills.
To use a 3M kitchen sponge with an abrasive pad to dull your gloss plastic phone case, follow these steps:
- Remove your phone from the case.
- Prepare a mixture of warm water and dish soap.
- Dip the abrasive pad or sponge into the soapy water.
- Scrub the phone case with the abrasive pad, paying extra attention to stained areas.
- Rinse the case under running water to remove any remaining soap.
- Shake off excess moisture and wipe the case with a clean towel.
- Allow the case to air dry completely before putting it back on your phone.
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Toothpaste can reduce the shininess of plastic
Toothpaste can be used to reduce the shininess of plastic. While toothpaste is often used for cleaning and whitening teeth, it can also be used to dull the surface of plastic. This is because toothpaste contains mild abrasives that can help to create a rougher surface on the plastic, reducing its ability to reflect light and making it appear duller.
To use toothpaste to dull a gloss plastic phone case, start by choosing a toothpaste that does not contain microplastics or microbeads, as these can be harmful to the environment and your health. Then, apply a small amount of toothpaste to a damp cloth or sponge and gently rub it onto the surface of the phone case in circular motions. You can also try using a soft-bristled toothbrush to apply the toothpaste, especially if you need to reach small nooks and crannies.
It is important to be gentle and avoid applying too much pressure, as you do not want to scratch or damage the plastic. Rinse the phone case with clean water and dry it thoroughly before putting it back on your phone. You may need to repeat this process a few times to achieve the desired level of dullness.
Keep in mind that using toothpaste to dull plastic may not always be effective, and the results may vary depending on the type of plastic and the condition of the surface. Some plastics may be too porous or cloudy to achieve a completely transparent and shiny finish, even with polishing.
Additionally, if you are looking for a more permanent solution, you may consider switching to a matte phone case. Matte finishes are designed to be dull and diffuse light rather than reflect it, making them a good option if you prefer a non-glossy look. Matte cases also tend to be more fingerprint-resistant and easier to grip than glossy cases.
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Vinegar and baking soda can help achieve a dull finish
Vinegar and baking soda are common household ingredients with natural cleaning properties. They can be used to effectively clean plastic items and remove stains, dirt, and odours.
When combined, vinegar and baking soda create a chemical reaction that produces carbon dioxide bubbles. This reaction helps to loosen and lift dirt and stains from the plastic surface.
To clean a plastic phone case using vinegar and baking soda, first mix equal parts vinegar and water in a container. Apply the mixture to the phone case, making sure to cover all areas that need cleaning. Then, sprinkle baking soda over the vinegar solution and use a sponge or cloth to scrub the surface gently. Focus on any stained or dirty areas, applying more pressure if needed. The mild abrasive action of the baking soda will help remove dirt and grime without scratching the surface.
Finally, rinse the phone case thoroughly with clean water to remove any residue. Dry the case with a clean towel or allow it to air dry completely. This step is important to prevent moisture from lingering on the surface, which could lead to mould or mildew growth.
While vinegar and baking soda can be effective for cleaning plastic, it is recommended to test the cleaning solution on a small, inconspicuous area first to ensure it does not cause any damage or discolouration.
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A buffing wheel can be used to remove the gloss
Buffing wheels are a great way to remove gloss from a plastic phone case. They are commonly used to remove scratches from plastic surfaces and restore shine. Here's a step-by-step guide on how to use a buffing wheel to dull your glossy plastic phone case:
Choose the Right Buffing Wheel
Select a cotton buffing wheel designed for removing scratches from acrylic or polycarbonate surfaces. Cotton buffing wheels are softer and less likely to damage your plastic phone case. You can also use buffing wheel attachments designed for drills. These attachments are readily available and effective for removing scratches and gloss from plastic surfaces.
Prepare the Surface
Before using the buffing wheel, ensure the plastic phone case is clean and dry. Use a mild cleanser or soap and water to remove any dirt or debris. This step is crucial as dirt or debris can scratch the plastic during the buffing process. Once cleaned, rinse the case with water and dry it thoroughly with a soft towel or microfiber cloth.
Use the Buffing Wheel
Now it's time to use the buffing wheel. Turn it on and hold the edge of the wheel gently against the plastic phone case. Move the wheel in a circular motion, applying light pressure. Keep the wheel moving to avoid concentrating the abrasion in one area, which could create an uneven finish. Continue this process until you achieve the desired level of dullness.
Finish and Inspect
Once you're satisfied with the results, turn off the buffing wheel and clean the phone case. Use a soft, damp cloth to wipe away any residue or dust created during the process. Finally, dry the case with a microfiber cloth and inspect the results. Ensure that you have achieved the desired level of dullness and that the finish is smooth and consistent.
Additional Tips
- Always use a light touch when working with soft plastics to avoid damaging the surface.
- If you don't have a buffing wheel, you can also use buffing papers with fine grits (3,000 and 4,000) to manually dull the gloss.
- For deeper scratches or more aggressive dulling, you can use sandpaper before the buffing process. Start with a finer grit and work your way up if needed, always being careful not to damage the plastic.
By following these steps and taking the necessary precautions, you can effectively use a buffing wheel to remove the gloss from your plastic phone case and achieve the desired dull finish.
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Frequently asked questions
There are several ways to dull a gloss plastic phone case. One way is to use a buffing wheel with a rubbing compound. Alternatively, you can use sandpaper, but be aware that this will scratch the plastic. For a gentler option, try using a plastic abrasive sponge, or a 3M kitchen/dishwashing sponge with a thin abrasive pad attached.
It is recommended to use a very fine grit sandpaper to dull a gloss plastic phone case. Aim for 1500 grit or finer if possible.
Yes, toothpaste can be used to dull a gloss plastic phone case. Make the paste thick, not watery thin, and apply it to the case. This method will reduce the shininess of the surface.
Dulling your gloss plastic phone case by creating a matte finish can have several benefits. Matte finishes tend to hide fingerprints, scratches, and smudges better than gloss finishes. They are also less slippery and easier to grip.




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