Liquiguard Solid StepCote Non-Slip Coating
I had one of my maintenance crew members install that on the ceramic tile floor. It was in the dishwasher room in our one commercial kitchen. We used #4 - the heaviest duty commercial version. They were looking into installing kitchen grade rubber mats when we found that product.
It looks like an acrylic floor finish with anti-skid in it. They installed 2 coats with a 1/4" nap roller on Friday so I didn't get a chance to check it out myself. They said it was awesome after the first coat.
They do make a shower treatment product in a small kit too. »
solidstepcote.com/non-sl ··· bathtub/