Mornings are best enjoyed with a cup of coffee while scrolling your iPhone - until you spill some and ruin your device’s pristine look. Coffee stains can cause discoloration in your iPhone’s back as the liquid can seep deep into the material.
Silicone, waterproof iPhone cases can be your device’s coffee-proof armor. They serve as an airtight barrier against spills and splatches to maintain a clean phone surface. Moreover, they have a lightweight design that keeps your device portable and easy to use while sipping your coffee.
In this article, you’ll discover why coffee lovers should invest in a silicone iPhone case to keep their device’s elegant look and quality performance.
Why Many Phone Cases Are Made of Silicone?
Silicone is an inorganic synthetic polymer made from isolated silica derived from heating quartz sand by around 1800 degrees Celsius. Silica is then mixed with methyl chloride to form methyl chlorosilane, then distilled and underwent polymerization, to form the silicone material.
Such an intricate production process made silicone an ideal phone case material. Silicone achieves impressive thermal stability (from -80 °C to 250 °C) so it has sufficient ultraviolet and oxidation resistance. Plus, it is also shock-absorbent, so it’s effective as a cushion when the phone falls or bumps into a hard surface.
Moreover, silicone is highly flexible and rubbery, so it conforms easily to the shape of the device. This flexibility makes silicone a better choice than plastic or thermoplastic polyurethane (TPU), which are often too rigid and firm.
Silicone is also extremely lightweight because of its light and low-density chemical constituents (compared to “heavier” and denser carbon-based polymer substances). So, many manufacturers striving for a light and casual case design opt for silicone as the prime material.
Is Silicone a Coffee Spill Savior?
Silicone is a reliable against daily wear and tear. But how does it hold up against liquid spills?
Silicone is inherently water resistant because it’s composed of silicon and oxygen atoms that are less chemically reactive, which ensures stability against water penetration. As such, a silicone case can protect your iPhone from water, tea, or coffee spills. As long as it’s snugly fitted around the phone’s edges, no coffee stains will seep into the phone’s finish.
More impressively, waterproof silicone iPhone cases are easy to clean. You can simply wipe off the spills or spots from the coffee and it will appear neat again.
Most manufacturers, such as Casekoo, offer silicone spill-proof iPhone cases that are purpose-built to withstand liquid stains. It’s advisable to acquire a premade case from reputable sellers rather than crafting a DIY waterproof case because it involves an intricate chemical process to achieve a water-resistant material structure.
Silicone vs. The Competition: Why It's a Top Choice?
Let’s talk in-depth about why a silicone case performs well compared to other material types.
Silicone vs. Plastic
Many assume that silicone and plastic cases are simply identical, but this is not the case. Plastic is a carbon-based, high molecular-weight polymer, so it’s firmer and more rigid than silicone. It’s also more brittle, which makes it prone to cracks upon high-impact falls.
Silicone has better shock absorption than plastic because it’s more elastic and flexible. These properties help in the efficient and rapid distribution of impact energy when your phone drops. As impact energy transmits effectively around the case, the phone is secured from potential damage.
Silicone vs. TPU
Thermoplastic polyurethane (TPU) is one of the most durable case materials because of its high resistance against tearing, abrasion, and drops. It has a greater likelihood of preventing cracking and shattering even if the phone is dropped from a significant height. Compared to silicone, TPU has better tensile strength and superior durability.
However, silicone cases usually have a better grip because of their rubbery and sticky texture. TPU is often smooth and slippery like plastic, so it doesn’t provide as much grip.
And while TPU is more flexible than plastic, it’s still firmer than silicone. So, silicone cases are still more adaptable to the shape or form of the device.

Style and Functionality of Silicone Cases
Waterproof silicone cases hold dyes well and are compatible with most screen printing methods. So, it’s easy to add detailed graphics and visual prints to the surface of a silicone case. This quality makes silicone cases appear in various stylish designs, from flashy and colorful options to sleek and minimalist styles.
It’s also easy to add custom designs in a silicone case. You can use DIY vinyl decals, stickers, or acrylic paint to decorate the case.
Aside from their stylish look, silicone cases also excel in functionality. A high-quality, waterproof silicone case is usually made with these features:
- Superior Grip and Comfort: These cases are super grippy and won’t fall from your hand (even if it’s sweaty or oily).
- MagSafe Compatibility: Most silicone cases are designed to support Apple’s MagSafe technology. This means that silicone cases do not interfere with the magnetic connection between the device and a MagSafe accessory like a wireless charger.
- Quick and Easy Installation and Removal: Silicone cases are flexible so they can easily fit snugly into the phone. If you want to remove it for cleaning, you can easily detach it without scratching the phone.
- Durable Ring Stand: Some silicone cases are integrated with a built-in stand to enable hands-free phone use such as when watching a video or doing a video call.
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How To Maintain a Silicone Case?
As with other case materials, a silicone case will also get dirty over time due to the dirt, grime, dust, moisture, and microorganisms from the surrounding environment. Regular maintenance is essential to keep it clean and polished.
To clean waterproof iPhone cases made of silicone, you may:
- Use a wet soft cloth to wipe off its surface. Avoid using harsh chemicals as they may lead to surface discoloration.
- For deep cleaning, you may soak the case in a bowl of warm water for at most five minutes. Squirt a dish soap and gently scrub the silicone case while it’s soaked in the water.
Keep Your Device Safe From Coffee Spills With a Waterproof iPhone Case
Coffee sessions are extra fun without the worry of coffee spills damaging your iPhone. So, it’s high time for coffee lovers to consider waterproof silicone iPhone cases as extra protection for their precious devices. With its reliable spill-proof structure, grippy texture, and stylish look, a silicone case is a worthwhile investment.
Casekoo believes that your device deserves the best. Our silicone cases are made of world-class premium materials to ensure ultimate protection against coffee spills, external contaminants, and high-impact drops. We strive to bring you stylish cases with unmatched durability and functionality.
Explore Casekoo today and choose from our range of top-quality case designs.