A transparent cover is sometimes included in the smartphone sales package by certain smartphone makers (like Xiaomi, for instance). And what seems like a decent idea at the time becomes a permanent curse.
And the explanation for this claim is as straightforward and unambiguous as water: the majority of these situations eventually become yellow.
Thermoplastic polyurethane (TPU) casings are robust, adaptable, and reasonably priced. But over time, this substance deteriorates, giving these cases their yellowishcolour.
What’s worst? Nearly nothing can be done to combat this adverse effect.
Today, there is a huge demand for smartphone covers, and this industry has brought in US$ 21.4 million globally.
The modern times avoid the practise, but many manufacturers are committed to including the attachment in their sales kit. In addition to offering protection from spills and blows, cases are also highly collector commodities in the hands of customers who are more enthusiastic about these goods.
For certain of their products, the majority of manufacturers provide TPU cases. The gesture is quite admirable, however because of the various ways that people live, this instance may start to deteriorate.
The material is recyclable, abrasion-resistant, and able to handle factors typical of regular usage of the gadget, so there hasn’t been a problem—until now.
And customers can get all of this at a considerably lower price, which naturally explains why it’s so popular with smartphone users.
But, none of this is problematic.
Plastics and UV light don’t get along
The TPU was originally made of yellow material. To obtain a translucent look, manufacturers of smartphone cases paint the cover with a layer of blue paint on top.
Since this is a volatile polymer (even if this format exhibits some rigidity), high heat might cause the colour of the case to change, with the accessories suffering the most severe effects.
TPU cases have a highly unique ability to reflect or refractive bend blue light. The case’s colour changes as a result of the light reaction, and as time passes, ultraviolet light damages these connections and creates new, shorter, and more erratic chains.
In the end, deterioration is caused by exposure to the sun, which causes the case to become yellow and worsen with time, just as it would with cases made of silicone and other materials.
Is there any way to avoid this?
Some respond “yes,” but it’s always a good idea to be wary because these individuals are disseminating these suggestions through short videos on TikTok for TikTok Challengesor YouTube.
Cleaning the casing with soap, water, and isopropyl alcohol is one technique. They also claim that bathing in a concoction containing several solutions and 40 litres of hydrogen peroxide helps.
Both times, it is impossible to bring the cases back to their original look, and neither technique enhanced the case’s attractiveness. They merely succeeded in disinfecting and cleaning the item, with no advance notice of a change in look.
The best course of action is perhaps the most straightforward and unassuming: get a second case.
If the material cannot be recycled, consider substituting it with something that won’t oxidise over time. Always keep in mind that aesthetics aren’t all that important and that you may still use your current case for longer as long as the functionality isn’t compromised.
Even the most durable cases may deteriorate and change colour over time. Try to relax since this is a situation that anybody may find themselves in.