well i painted mine years ago,it lasted 12 months roughly if i remember correctly,with the bleach and the scrubbing with brushes it just didnt last,so then I tiled it,after a few years the smell of piss was strong,so 3 years ago,knocked the kennels i had and rebuilt new ones, and i power floated the floors(well i got them done,i didnt do it) and they are so far still a great job.I will never put paint on kennel floors again unless i had indoor runs,mine are all exposed to the weather and unless you use industrial strength resin based floor paints i think the piss and crap will defo do carnage