It’s not a hidden fact that most transparent iPhone cases turn yellow after a few weeks of use. But this condition is not limited to iPhone cases alone; all clear cases made of a particular material experience this. If you haven’t encountered what a yellowing case looks like, you can check the “before and after” image of a transparent iPhone case below.
No, this coloration is not something you can clean up using a damp cloth; it’s an irreversible change caused by some reactions. The color deepens with time and eventually leads to the breakage of the case.
As you probably can guess, a case like this makes your iPhone looks dirty and also defeats the purpose of purchasing it. But why exactly do most transparent covers turn yellow after a while?
Causes Of Yellowing Coloration In Clear Cases
The leading cause of yellowing in cases is the material. Many of the clear cases in the market are made of Thermoplastic Polyurethane (TPU) because of its tremendous benefits. The qualities of TPUs that make is a material of choice for fabricating clear cases include the following:
- Transparency
- Flexibility
- Resistance to oil and abrasion
- Elasticity
- Low cost
However, while TPUs are transparent, they are not as clear as the products presented to us. One can describe them as being transparently yellow, and manufacturers often tinge them with blue after other tweakings to give the crystal-clear view that we all see.
Under the appropriate conditions, these products will remain purely transparent forever. However, once there is a breach in these conditions, the case returns to its original state, which I earlier described as “transparently yellow.”
The conditions that lead to the yellowing of TPUs and their consequent degradation are primarily two. These are:
Ultraviolet Radiation from the Sun
Sunlight contains UV rays which is an electromagnetic wave. When this energy falls on finished TPUs, it breaks down the molecules, causing their degradation and removal. Of course, this process does not happen on the first exposure; it depends on the intensity and frequency of the sun. And in addition to the devastating effect of UV rays on TPUs, the second reason below seals the yellowing.
Moisture & Dirt
These two things are sure enemies of any transparent object because of the dirty coatings they leave on them. However, there is more to the damage they cause than the messy coatings. Most moisture that gets to transparent covers comes from sweat and other body perspirations consisting of salts, oil, and a degree of acidity.
Acids are corrosive, and even when mild, their additive effects are strong on TPUs. Combined with dust, dirt, and oily secretions, sweat and sun heat can quickly change the coloration of a transparent case.
What About Anti-Yellowing Cases?
Many accessory manufacturers have found a way to address this discoloration in transparent cases by employing premium materials and technology in making their cases. One such technology that has addressed the yellowing of clear cases is Krystec™
What is Krystec™ Clear Technology?
Krystec™ is an ESR technology to combat the problem of yellowing in transparent cases. Among other things, it combines TPU and Polycarbonate to give a product that doesn’t turn yellow even when exposed to the extreme of the two conditions earlier discussed. The technology makes this case stand out from others and has been independently tested and confirmed by SGS.
SGS is an internationally accepted body that inspects, verifies, and certifies products vis-a-vis the claims made by their manufacturers. The body received and tested ESR’s Krystec clear case with HaloLock and subjected it to a Light Ageing Test UV for 48 hours. It compared the result with a non-Krystec clear case from SmartDevil, and below is the result after 48 hours.
Sample B – ESR’s Krystec case with HaloLock – remained clear even after 48 hours of consistent exposure to the damaging UV rays. The other product without this technology has become yellowish after the same experience.
So, if you desire to maintain the clarity of your transparent case, ESR’s Krystec clear case is your best option. See the description and features of this ultra-clear case below for confirmation
Krystec™ Clear Case With HaloLock-Price: $26.99
Highlights
· Lasting Ultra-Clear Case
· Powerful In-Built Magnets for MagSafe Charging
· Shock-Absorbing Ends
· Resistant To Abrasion
· Affordable Price Tag
· Comfortable Grip
ESR has been producing clear cases for years, but this Krystec design is the most transparent and most anti-yellowing device of all. It combines the TPU and Polycarbonate materials to create a cover that resists scratching, yellowing, and impact damage. The beautiful part is that this product doesn’t cost a fortune; in fact, there is a 10% price slash on it from its original price of $29.99.
The corners of this ultra-clear case are shock-absorbing in the event of an accidental fall. And besides its long-lasting clarity, you can charge wireless via MagSafe with it without any impediment. The buttons are also Polycarbonate-made to give a tactile feel with each press. There is also a network of powerfully built-in magnets that correctly aligns with your iPhone’s MagSafe for more reliable and faster charging.
Conclusion
Besides the general protection function, a clear case is responsible for highlighting your iPhone’s impressive design. However, with the yellowing coloration associated with most of them, you may be unable to achieve this.
ESR has taken away this setback by developing a pocket-friendly yet efficient solution. Its Krystec technology compares to none other as it outperforms other clear cases in the market. Its SGS approval and certification as a long-lasting anti-yellowing case further prove this, and it should be your case of choice for this premium Apple device.
