Similar to the Rocket Concrete Polish Pads, these dry pads are hybrids of the more popular grits, resulting in a 3 or 4 step system. This eliminates steps, maximizing your time polishing.
When grinding hard concrete the bond of your diamond segments should normally match the concrete hardness in the opposite way, eg. soft bond for hard concrete and hard bond for soft concrete. When grinding concrete the diamonds cut into it and scratch it away as long as the diamonds are exposed. This breaks the concrete down to sands and dust. During this process the diamonds fracture and wear down, but at the same time the bond metal is worn away by the sands of the concrete which exposes more of the embedded diamonds so that cutting can continue.