Ultra-Ever Dry

This superhydrophobic (water) and oleophobic (hydrocarbons) coating uses proprietary omniphobic technology to create an air barrier that repels water, oil, and virtually any other liquid. The product literally gives violators a taste of their own urine. It has been applied to 15 walls in San Francisco, and ‘smell tests’ have determined that public urination is down. The paint has proven to be effective and it only costs a few hundred dollars per wall.

UltraTech