The Artistic Pavers Shellock Tan 12" × 12" concrete paver requires very little maintenance. The manufacturer recommends the following: F.A.Q +1 - Regular cleaning: Sweep and rinse with water. For dirt, use mild detergent and a nylon brush. - Twice-yearly maintenance: Clean the surface and inspect for loose, chipped, or uneven pavers. - Stain removal: Clean spills promptly and use a cleaner specifically approved for concrete pavers. Test it on an inconspicuous area first. - Sealing: Not required, although a compatible sealer may help resist stains and enhance the color. - Pressure washing: Use low, controlled pressure and avoid spraying directly along the joints, which can dislodge the sand.