Had reps from race deck to my house to solve problems and they suggested putting screws through tile into concrete which we did in several places. I then pulled bus into garage and carefully applied brakes and whole floor moved. Had 1/2" gap around edge's like called for, spilled some
oil and had to take up section. Knew the screws would not work but also knew I was going with ceramic tile anyway. If race deck type product works for someone that's good, just did not work for me. Put epoxy floor coating in garage at one of my rental houses and I don't think it's the same as it used to be. EPA has something to do with that. One more reason I went with tile. Easy to mop floor and with some pine-sol in water ,cleans
oil drips and spills up great. Only problem is it's slippery when wet but air dry's real quick. Sold race deck to fellow member here for cheap to help him out. FWIW