Use rubbing alcohol: Rubbing alcohol can help remove stains from your silicone phone case. Use a cotton ball or cloth to apply rubbing alcohol to the yellowed areas of your case and then simply rub it until the yellow colour fades away.
Soap and Water
Start simple. Sometimes, a little soap and water can go a long way. Mix a bit of mild dish soap into warm water and give your case a good scrub with a soft cloth or toothbrush. This might not entirely turn back the clock, but it can remove surface dirt and oils.
The best cleaning solution for your silicone phone case is warm soapy water. Add dish washing liquid to a cup of water while it is still warm to ensure that the soap dissolves in it properly. Stir the mixture until it is slightly foamy. Dip a clean toothbrush in the soapy water and scrub your case.
Dish soap is good for everyday maintenance of silicone, while products including baking soda, vinegar, and hydrogen peroxide will do the trick if you need to deep clean silicone cooking and baking supplies.
good news is that this yellowing is temporary and it can be removed with normal household cleaning products, simply spraying some household bleach onto the silicone and allowing it to sit for 10-15 minutes before rinsing it off will get rid of the yellow color.
In a small basin that can fit all the silicone rubber items you'll need to clean, pour hydrogen peroxide enough to cover the stained items. Let them soak overnight. The next day, remove the items and rinse them with clean water. You can also opt to double-clean them with a soap dish and a sponge before rinsing.
First, try undiluted white vinegar applied directly onto the sealant or if preferred, it can be diluted at a ratio of two parts vinegar to one part water. Leave it to sit for half an hour or even overnight for larger, denser areas of mould.
Some silicones, especially in construction sites, have showed a tendency to turn yellow even before the job has been handed over to the owners. This is directly related to the technology used in neutral cure silicones. All neutral cure silicones will yellow due to oxidation of one of the raw materials.
Then create a mild soap solution — dish soap diluted in warm water works well — and use a sponge or rag to gently scrub the rubber. Be sure to thoroughly rinse off any soap residue. For tough stains, a paste of baking soda and water can help lift discoloration. Allow the rubber to air dry.
Cleaning silicone sealant: mould and mildew remover
These are available from most DIY stores and supermarkets. Check the product's instructions and use as directed. You might see vinegar, a combination of baking soda and vinegar or bleach recommended as cleaning solutions for silicone sealant elsewhere.
One of the easiest ways to unyellow a clear phone case is to use baking soda and water. Mix baking soda with a small amount of water to create a thick paste. Apply the paste to the case and scrub gently with a toothbrush. Rinse thoroughly with water and dry it completely.
Clear silicone will eventually yellow over time due to prolonged exposure to light and other various environmental factors, including humidity and excessive moisture, that may not be ad damaging to dark colored silicone such as black silicone rubber.
Use rubbing alcohol and hydrogen peroxide mixed with baking soda to prime the surface. Dry the sealant after cleaning: After cleaning the silicone sealant, dry it thoroughly with a clean, dry cloth, paper towel, or towel. Moisture cause mildew and mold growth.
Fill your sink with equal parts distilled white vinegar and hot water. Allow your cloudy containers to soak for at least an hour, up to overnight for severely foggy pieces. The acetic acid in the vinegar will dissolve the grimy film responsible for the haziness.
There are several substances you can use to soften the silicone caulking. Among the easiest and most affordable are vinegar, alcohol, and WD-40. If you need something stronger, you can use industrial-grade isopropyl alcohol, and we recommend contacting a professional.
Impact on Grout Sealants: Grout is particularly vulnerable to vinegar. Grout sealants, often silicone-based, are designed to protect against stains and moisture. However, the acid in vinegar can break down these sealants, exposing the grout to staining.
Cleaning your yellow silicone phone case doesn't have to be difficult or expensive. By using common household items like baking soda, dish soap, hydrogen peroxide, toothpaste, or vinegar, you can restore your case to its original colour.
While short-term exposure is usually safe, consistent use of rubbing alcohol can lead to silicone degradation over time.
Use rubbing alcohol: Rubbing alcohol can help remove stains from your silicone phone case. Use a cotton ball or cloth to apply rubbing alcohol to the yellowed areas of your case and then simply rub it until the yellow colour fades away.
In a small bowl, mix about three tablespoons of Domex Classic Thick Bleach with three tablespoons of water. Mix equal parts bleach and water. Dip an old toothbrush or equivalent soft-bristled brush into the mix. Use this to scrub the sole of your shoe, paying particular attention to the yellowed areas.
The Best Ways to Remove Yellowing from Plastic
Soak yellowed plastic items in hydrogen peroxide for 3-4 hours to remove discoloration and stains. Or, submerge the plastic in white vinegar or rubbing alcohol. For items you can't soak, scrub them with a baking soda paste, lemon juice, or a magic eraser.