Chemistry has solved another prickly problem. The solution:
pee-repellent paint.
[San Francisco] Public Works crews have finished painting nine city walls with pee-repellent paint and more are in the works. The painted surfaces make urine spray right back onto the shoes and pants of unsuspecting relief-seekers.
The coating, Ultra-Ever Dry, comes from Ultra-tech, a Florida company in the chemical cleanup and waste management business that also provided the paint for Hamburg. The paint coats an object and creates a surface chemistry and texture with patterns of geometric shapes that have peaks, or high points, that repel most water-based and some oil-based liquids.
Hey, p*ssers-by, you won't find relief here. And that's a relief for the rest of us.
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