[Paladin]

Used fairly frequently for interior/exterior existing concrete surfacing here - you may have seen it around pools. The "pebbles" are actually very small (aquarium gravel size), smooth, and just provide some traction to the finish. They're imbedded in an epoxy matrix that is supposedly durable - 1/2-3/4"; just haven't seen any reports on "wearability" or utility for garage surfacing. Supposedly have an advantage if the slab develops cracks, because the finish is easy to resurface/repair.