One surface across concrete that never matched
Most patios that have been in a yard for any length of time are not one slab. There is the original, then the piece added when the yard got rearranged, then the patch where something was dug up and made good, and all three cure differently, weather differently and end up different colors. A coating takes the whole area and finishes it as a single surface in a color you pick, so what you see is a patio rather than a record of everything that has happened to it.
The texture is built into the coating rather than borrowed from the concrete underneath. Chips are broadcast into the base coat while it is wet and held under a clear topcoat, which gives the surface its color and its grip in the same operation. That matters outdoors: grip that comes from the coating stays where it is put, whereas a texture relied on from the slab below polishes away first along the line everybody walks.
Underneath all of it, the concrete stops behaving like an open surface. Sealed concrete does not drink up rain and meltwater the way weathered slab does, and it stops powdering underfoot and leaving chalk on shoes and furniture legs. Leaves, pollen and spills wash off a closed surface instead of soaking into an open one. Outdoor work we have finished is on the gallery.






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