White silicone strap from the Xiaomi Mi Band fitness bracelet (or newer Mi Smart Band models) 6/7/8) — It's a dirt magnet, sweat, dust, hand cream, even pieces of clothing, and it gradually turns into a gray or yellowish rag that spoils the whole look of the gadget, but you don't have to throw it away. You can return to him the original whiteness at home, using improvised means or specialized chemistry.
The main problem is the porous structure of silicone, which absorbs fat and sweat like a sponge, and when it comes in regular contact with the skin, it creates a sticky coating on the surface, which attracts even more pollution. In this article, we will analyze 10 working methods of cleaning - from gentle (soap solution) to aggressive (hydrogen peroxide). + UV lamp, and also tell you which methods are strictly forbidden for Xiaomi silicone (for example, boiling or acetone).All instructions are tested on the Mi Band 4-8 straps and do not damage the factory coating.
Why Xiaomi’s strap is getting yellow and dirty: 3 main reasons
Before you start cleaning, it’s important to understand what you’re dealing with. Xiaomi silicone straps don’t just go bad, they’re facilitated by:
- 🧴 Cosmetics and chemistry: Hand creams, lotions, deodorants and even soap contain fats and silicones that penetrate the pores of the material and oxidize over time, giving yellowness.
- 💦 Sweat and skin fat: when you use the bracelet (sports, heat), the strap absorbs up to 0.5 ml of sweat per day, salts and uric acid in its composition crystallize, forming a solid plaque.
- ☀️ Ultraviolet: under the influence of the sun, silicone loses plasticizers and becomes brittle, and its surface acquires a grayish hue.
Interesting fact: Mi Band straps 6 And the newer ones have slightly improved coating, but they're still susceptible to contamination. 3/4 They turn yellow faster because of the cheaper silicone composition. If your strap has already acquired a vintage hue, do not despair. 80% In some cases, it can be brought back to life.
Preparation of the strap for cleaning: what to do before the procedure
You can't just pour a bleach on a strap. Xiaomi's silicone is sensitive to temperature and chemistry, so preparation is half the success.
Remove the strap from the body of the bracelet (press the button from the back)
Vacuum or blow with compressed air (remove dust from the grooves)
Take pictures of the mounts (so as not to confuse the sides during assembly)
Prepare a soft brush (tooth or nail) and cotton swabs-->
Pay special attention to the junction of the strap with the body, which accumulates the most dirt. If the bracelet has not been removed for years, the mounts can "stick". In this case, do not pull force: moisten the joint with alcohol solution (40-70%) and wait 5 minutes.
⚠️ Warning: Never use metal brushes or knives to clean, leaving micro-scratches that will then accumulate more dirt.°C: Silicone can be deformed.
Top.-5 gentle cleaning methods (without the risk of damaging the strap)
If the strap is not heavily contaminated (light gray plaque, sweat marks), start with these methods. They are safe even for straps with a texture surface (for example, Mi Band 7 Pro).
1. Soap solution + toothbrush
A classic that works 90% of the time, and it's good for daily cleaning.
- 🧼 Dilute in warm water (30–40)°C) liquid soap or dishware (1 tbsp per 200 ml).
- 🪥 Load the strap for 15-20 minutes, then brush with a soft bristling brush.
- 💧 Wash thoroughly under running water and dry away from batteries (silicone does not like sudden temperature changes).
2. Baking soda (to remove yellowness)
Soda acts as a soft abrasive and bleach, effective against old sweat spots.
- 🥄 Mix the soda with water to a state of gruel.
- 🧽 Apply on the strap, leave for 10 minutes, then rub with a brush.
- ⚠️ Do not use dry soda – it will scratch the surface!
3. Toothpaste (bleaching)
Only white paste without colored granules (for example, Colgate Optic White) is suitable.
- 🪥 Apply the paste on a wet strap, brush 2-3 minutes.
- 🚫 Avoid menthol pastes – they can leave divorces.
4. Vinegar solution (against bacteria and smell)
Vinegar dissolves sweat salts and kills bacteria that cause an unpleasant odor.
- 🍶 Mix table vinegar (9%) with 1:1 water.
- ⏳ Soak the strap for 30 minutes, then rinse.
5. Lemon juice + salt (for deep cleaning)
Lemon acid breaks down fats, and salt works like a scrub, a method suitable for straps with contaminants from cream or oil.
- 🍋 Squeeze the juice of half the lemon, add 1 tsp salt.
- 🕒 Apply for 5-7 minutes, then rinse.
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If the strap becomes sticky after cleaning, wipe it with a napkin dipped in a solution of water and alcohol (1:1). This will remove the residue of detergents.
Aggressive methods: when sparing do not help
If the strap turns brown or is covered with black stripes (like hair dye), you'll have to use "heavy artillery," which is risky, but sometimes it's the only way to save the strap from recycling.
| Method | Efficiency | Risks. | Time of exposure |
|---|---|---|---|
| Hydrogen peroxide (3%) | ⭐⭐⭐⭐ (bleach, kill bacteria) | Maybe highlight the colored inserts. | 15-30 minutes |
| Isopropyl alcohol (70%+) | ⭐⭐⭐ (fat-soluble) | Drying silicone can make it fragile | 5-10 minutes |
| Ultrasonic bath | ⭐⭐⭐⭐⭐ (micropore-clean) | Expensive, requires special equipment | 3-5 minutes |
| Chlorhexidine (0.05%) | ⭐⭐ (disinfects, but it bleaches slightly) | Safe, but ineffective against old spots | 1 hour |
Instructions for the use of hydrogen peroxide (the most popular aggressive method):
- Pour in a container of 3% hydrogen peroxide (not higher than 40)°C).
- Load the strap for 15 minutes. Add 1 tsp of soda per 100 ml of peroxide to enhance the effect.
- Clean with a brush, especially paying attention to the joints.
- Wash with water and dry in the shade (direct sunlight after peroxide can cause yellowing!).
⚠️ Warning: Never mix peroxide with vinegar or alcohol - this causes a chemical reaction that can damage silicone! Also avoid concentrated peroxide (30% or higher) - it corrodes the material.
What to do if the strap became stiff after alcohol?
What NOT to do when cleaning the Xiaomi strap
Some "people's" councils can permanently ruin the strap, and here's a blacklist of methods that are surfing the Internet but actually do harm:
- 🔥 Boiling: Silicone deforms at temperatures above 80°C. The strap may "float" or crack.
- 🧴 Acetone/solvent: Dissolves the factory coating, making the surface rough.
- 🌞 Bleach ("White"): Eats silicone, leaves white divorces.
- 🧼 Washing powder: Contains abrasives that scratch the material.
- 🔪 Knife/blade: Even a neat scrape leaves microcracks.
Also, you should not dry the strap with a hair dryer - hot air makes silicone brittle. The best way to dry it is to put it on a towel in a ventilated place for 12-24 hours.
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If the strap becomes dull after cleaning, treat it with silicone lubricant (for example, WD-40 This will restore the shine and protect against new contamination for 1-2 months.
How to Prevent Fast Pollution: 5 Rules of Care
Cleaning the strap once a month is normal, but you can reduce the frequency of cleaning by following simple guidelines:
- 🚿 Remove the bracelet before the shower: Soap and shampoo penetrate the pores of silicone andlater attract dirt.
- 🏋️ Use sports tape: When exercising, wear a bracelet over the tape - this will reduce contact with sweat.
- 🧴 Apply the cream 30 minutes before putting on: Let the skin soak up the makeup so it doesn't get on the strap.
- ☀️ Keep in the shadow: Ultraviolet accelerates silicone aging.
- 🔄 Alternate straps: If you have a spare (such as black), use it 2-3 days a week, giving white a rest".
For Mi Band models 7/8 with fast-removal straps you can buy a protective cover from TPU (It's sold on AliExpress, and it prevents dirt from entering the grooves and prolongs the life of silicone.
How to replace the strap if it can not be cleaned
If all methods have been tried and the strap still looks hopeless, consider alternatives:
| Option | Pluses | Cons | Price (average) |
|---|---|---|---|
| The original Xiaomi strap | Perfect landing, original material | Expensive, it gets dirty fast. | 500–800 ₽ |
| Third-party brand silicone strap | Cheaper, variety of colors | It could be tougher or thinner. | 200–400 ₽ |
| Cloth strap (nylon) | It doesn't turn yellow, it breathes. | It absorbs sweat, it's hard to clean. | 300–600 ₽ |
| Metal bracelet | Stylish, it doesn't get dirty. | Heavy, can rub. | 1000–2500 ₽ |
| Rubber (for example, for Apple Watch) | Long-lasting, no dirt absorbing. | Not suitable for all Mi Band models | 400–1200 ₽ |
When you buy a new strap, pay attention to the size of the mount. 4/5/6 width 18 Mmm, and the Mi Band. 7/8 — 22 Also check compatibility with your bracelet model (e.g. Mi Band straps). 6 Not suitable for the Mi Band. 8 Pro).