I first read about this in Popular Science. You send your phone to them, they apply a vacuum-deposited nano hydrophobic coating that covers the outside and inside surfaces of your phone, making it water resistant. The latest treatment can make your device waterproof to 1 m depth!
Oh and the coating is invisible and doesn’t affect the feel of your device.
Anyone tried it? I didn’t think waterproofing was as simple as just coating the surfaces.
So how do you know your device was actually treated . . . other than drowning it?
You could measure the Contact angle - Wikipedia before and after treatment.
I’ve seen a number of demo’s of this, and it looks pretty good. But they do not offer a guarantee that it will actually work.
To be honest, I am waiting for this technology to be integrated in the phone manufacturing process - it will be more reliable when individual circuit boards are coated prior to assembly, and water access points can be sealed by design (why do we still use stupid jacks for headphones/charging - because Apple owns the patents on magnetic surface connectors for electronic devices and won’t license the concept, that’s why).
Si
So the new LIQUIPEL 2.0 does come with a guarantee. If your device fails from accidental water exposure they replace or repair it free!! $60 water insurance entirely. Straight Dope