HzO Makes Your Smartphone Waterproof on the Inside

LAS VEGAS -- There are entire companies based on cases that make your cellphone or tablet waterproof. But what if they were unnecessary? What if your gadgets could survive a dunk in the swimming pool without any kind of external protection?

That's the promise of HzO, a nano-coating that protects small electronics on the inside. The company says its WaterBlock technology defends against moisture at the molecular level, attaching to the circuits in device to repel any liquids. It doesn't add any weight and it doesn't affect performance, HzO claims.

The coating isn't a consumer product -- HzO is something device makers would need to incorporate into their manufacturing processes. And they…
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