Silestone® is harder than any other solid surface material, including granite. This resistance is due to the quantity of quartz in its composition, the elasticity of the polyester resin elasticity, and the vibrocompression system used in its manufacture. Silestone® is a compound of natural quartz, which rates a 7 in the Mohs hardness scale.
Because of its resilience, it is possible to install longer lengths of stone without having to break it up into numerous joints. Fewer joints mean a smoother look, and a lower risk of liquid seepage at the joints. It can also withstand impact with pots, pans, and other hard objects that may chip or break other types of solid surfaces. This makes it an excellent material for kitchen countertops and other workspaces, floors, bathrooms, and exterior wall cladding.
In addition, it has a non-porous surface that needs no sealing, and it is highly resistant to staining. It will take little hurt from spilled coffee, lemon juice, vinegar, olive oil, wine, makeup, toothpaste, and many other substances that may stain materials that are more porous.
Silestone® is maintenance free. Because it is non-porous and has Bacteriostatic Protection, it does not need any special cleaning products or attention. It does not even need sealing. A daily wipe down with a clean dry cloth should keep it looking like new for many years to come. You can also use a mild detergent for countertops with a polished finish. Dried on spills and stains can be removed by soaking the area in a detergent solution for a few minutes and scrubbing it off with a non-scratch pad. Silestone® is heat resistant, but it is still best to use trivets for hot pots and pans to avoid thermal shock.