Hydrophobic, dirt-shedding spray is indistinguishable from magic

"Ultra Ever Dry" is a nanomaterial spray-coating that is (apparently) insanely hydrophobic, shedding dirt, water and oil. The jaw-dropping product video suggests many possibilities, from extreme hydroplaning sports to odd molecular gastronomy possibilities (though it's not rated food-safe, so caveat sprayer). If you're impatient, just zip the video to 2:00 or so and marvel.

What is it? The company says it's a "coating" that will repel almost any liquid by creating a barrier of air on the surface. They don't say what's in the coating. Whatever it is, the How to Apply This Product video suggests you don goggles, gloves and protective gear when you spray. They claim it will protect in temperatures ranging from -30 degrees Fahrenheit to 300 degrees Fahrenheit, but durability is a question. In the video, they say abrasion might affect performance (which makes me wonder how long a pair of sprayed boots would stay dry if you were on a wet, slippery, rocky hiking trail). It's expensive. The base coat is $57.95 and the top coat is $100.95 a quart. On the other hand, if you dare to spray it on your car windows, you wouldn't need window wipers. Or would the windows get too cloudy? If you sprayed it on a car surface, would it affect the gloss? Probably.

Next Time Your Mom Says Don't Go Out in The Rain, Spray Yourself With This [Robert Krulwich/NPR]

(Thanks, Fipi Lele!)