Concrete slabs are not ideal for use over a kitchen counter. Although they are durable and aesthetically pleasing, they do have some limitations that can affect their use in such a location: 1. Grease and stains:
Most concrete sealers do not fully cope with grease and oils, which means that concrete can easily get dirty. Grease stains can be difficult to remove, making it difficult to maintain the aesthetics of the surface.
Additional protection required:
To use concrete in such a demanding location, it would be necessary to use epoxy-based sealers or varnishes, which provide better protection against stains. However, standard concrete sealers will not be enough.
Due to these factors, concrete over a kitchen counter can require a lot of maintenance, which is not always practical.