Dry shake color hardeners providie dense and abrasion resistant surface. These are transmitting onto the freshly placed concrete and then troweled into the surface. The concrete is not colored all the way through. Since the color is concentrated on the surface- a more intense color can be produced. It is used in stamping applications. At the end of curing, as in integrally colored concrete, sealers can be applied to the surface to accentuate the color of the concrete.