my installed used small plastic beads called shark grip that were broadcast into the last cost of the clear topper.
My install is delaminating, and he messed up my install. But the non slip properties are working.
I have done epoxy 2x in 2 locations and neither lasted. This one is 5 years old and starting delaminating after 3 years. Installer blames everything but himself. He did all kinds of testing and said good to go for a 100 percent solids system, flakes and clear.
I am done with Epoxy.