The liquid-repelling coating will be used at two popular drinking locations in Shoreditch and Dalston, east London.
Hackney Council spends £100,000 a year cleaning urine off walls and pavements.
Feryal Dermici, cabinet member for neighborhoods, said: "If the prospect of a fine doesn't put them off from weeing in the street, maybe the risk of getting covered in urine will."
The treatment creates a barrier that repels liquid, meaning that urine will bounce off the wall and back towards the offender.
It is also intended to stop urine soaking into the wall, reducing stains and smells.
Crash for cash.
Five people have been found guilty over the biggest car insurance fraud investigation in the UK.
They were convicted of making six insurance claims worth £144,000 between 2009 and 2011. Two were found not guilty.
The fraud ring cost the insurance industry about £763,068.
But they were eventually caught by their own CCTV, driving a Land Rover into a forklift truck to make it look like the car had been in an accident.
Incendiary device 'ignites' at Preston Fishergate Shopping Centre
The "deliberately planted" device was found in a bin at Preston's Fishergate Shopping Centre at about 09:10 GMT.
Lancashire Police said an evacuation was ordered "as a precaution" because the incendiary had "gone off, causing very minor damage and no injuries".
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