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Could this "nano polymer" water-repelling spray really work?

Holy crap. Has anybody actually used this stuff? Does it do everything it's supposed to do? It's called "Ultra Ever Dry," and it's marketed as a nano polymer with hydrophobic (water-repelling — literally "water fearing") and oleophobic (oil-repellant) properties. It imbues just about any substance to which it is applied with rust-/grease-/dirt-/ice-/saltwater-/mud-/dirt-shedding capabilities.


Hydrophobic sprays like this are anything but new, but this is one of the best demonstration videos we've ever seen. Yes. We realize this is an advertisement. But NPR's Robert Krulwich posted it yesterday and that's pretty much endorsement enough for us:

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.


Has anybody told Troll Physics about this spray? The stuff is totally ripe with pseudoscientific implications.

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I wonder if it could be used on buildings to prevent graffiti?