For good clay stucco, good broom and sponges are really needed. After application with a trowel of the clay plaster Tierrafino Finish or Duro, the approaches of the plaster can still be seen. By sponging with a wet sponge, you can sand away the approaches. After a little stiffening of the plaster, the surface can now be made dust-free by intensive sweeping. Now the wall shimmers, and you're done.