If you have clear silicone in your home (perhaps being used as a sealant or caulking for your tiles or tubs), then you may notice that over time it becomes yellow following exposure to light and humidity. The good news is that this yellowing is temporary and it can be removed with normal household cleaning products.
A simple cleaning solution and instructions are as follows:
- Make a mixture of one cup of warm water (or 240ml) and a few drops of dish soap.
- Mix the solution together.
- Use a toothbrush to scrub the solution over the phone case.
- Work into all the nooks and crannies and clean it on the interior and exterior.
All neutral cure silicones will yellow due to oxidation of one of the raw materials. The problem can be exacerbated if the silicone is in a dark closed room, away from daylight (UV). It can be reversed by exposing the silicone to daylight, but over time it will eventually yellow.
Clear caulk is good for sealing fixtures on tile or stone (such as in showers or around a kitchen sink). Use clear caulk where you do not plan to paint over caulk. White caulk is best used for sealing baseboards, trim, and siding. Use white caulk where you will be painting over the caulk.
The ultraviolet radiation causes a process called oxidation, which results in the yellowing effect of silicone phone cases. Even exposure to extreme changes in temperature, humidity, and visible light can cause polymers to degrade.
If you want have a phone case that won't yellow but also need be clear transparent, you can consider about the TPU acrylic hybrid clear phone case.
After years of exposure to water and humidity, clear silicone can begin to yellow and blacken. This discoloration is caused by exposure to rust and the formation of mold. Removing the yellow from clear silicone can be accomplished at home without the need for expensive cleaning products.
In general, clear caulks are a great way to emphasize the unique materials your clients are using. It enhances the overall look of the shower instead of distracting from it. If the shower has a glass door that needs to be caulked, you'll want a clear formula.
Generally speaking, most silicone sealants take about 24 hours to cure completely. After this point they can be safely exposed to water, moisture, and other conditions of normal use.
Clean the sealant regularly with a good anti-mould cleaner or even just white vinegar. Wipe the seals after every shower or bath to ensure that it remains as dry as possible. Also think about the products which you use in your shower or bath.
Just like their effect on our skin, the sun's rays can age your clear case and turn it yellow. In this case, UV oxidation occurs, causing discoloration and imperfections.
However, while the Clear Case doesn't yellow and keeps your iPhone design visible, the interior can get a little visibly grimy over time. Luckily, that's easily remedied with a little water and a paper towel scrub every so often.
Never apply new silicone sealant over old sealant as, in most cases, the old sealant would have fallen away or split meaning that, no matter how much new sealant you apply, the leak will persist. Not to mention, applying a new sealant over old will look incredibly messy and unappealing.
How do you know which to use for a bathtub and showers? In general, sealant is the prefered sealing solution for bathtubs and showers, as it is more water resistant than traditional caulk. Silicone sealant forms a watertight seal that is resistant to heavy temperature changes.
Caulk made of pure silicone or siliconized latex/acrylic (i.e., latex or acrylic caulk with added silicone) adheres well to common shower and tub materials, including porcelain, ceramic, stone, fiberglass, and glass. Choose pure silicone for a more durable caulk job that won't come in contact with paint afterward.
The makers of Gorilla Glue have a new 100-percent silicone Gorilla Clear Sealant that is waterproof, mold and mildew resistant, won't yellow, shrink or crack, and is ready for water exposure in just 30 minutes.
The yellowing is a chemical change in the silicone, one that I don't think anything will fix other than pretty caustic chemicals that will most likely degrade the stability of the caulk if used to clean it.
Vinegar is safe to use on machines made using natural rubber seals and parts constructed from ethylene-propylene, silicone, fluorocarbon, virgin Teflon, and butyl synthetic rubber seals.
Here are some options for cleaning: Rubbing Alcohol: This is one of the easiest and most common methods of sterilizing medical grade silicone. This will kill off any bacteria that may be present, as well as dust or particles.
These materials undergo degradation over time, mostly due to UV light and heat. Other factors may include the oil and sweat from your hands. This is why you'll notice your crystal-clear smartphone case adopting a yellow hue within one to three months.
Our clear case is made from TPU, a material that is durable and malleable, so they're easy to fit, and offers high protection. Clear TPU can turn yellow over time via a natural aging process due to color transference and chemical reactions when exposed to excessive amounts of heat, UV light, and chemicals.
It's Yellow All the Way Down
Clear phone cases don't actually turn yellow over time, they get more yellow. All clear cases have a natural yellow tint to them. The case makers usually add a small amount of blue dye to offset the yellow, making it appear more crystal clear.