Protecting electronics from water - a new unique coating
But how it works (English) ↓
The device is placed in a sealed chamber, from which all the air is pumped out, after which a special vaporous substance is pumped into it, which, of course, penetrates into all the “slots” of the device. Further, some process is initiated, which, according to the company, in natural conditions takes place only on the surface of the sun, during which the substance is bound to the surface of the components of the device at the molecular level (some water-repellent impregnation “to the bone”, one thousandth of a human hair ). The result you saw on the first video.
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Parts are also protected against corrosion. And the extremely small thickness of the coating does not impair the quality of work of either the microphone or the speaker.
Company website (promise to do the same with your device for $ 60).