The purpose of sandblasting stucco
is to prepare the surface for either re-paint or re-stucco. When sandblasting to prepare for re-paint it is important not to damage the stucco, as new paint hasn’t enough body to cover or hide rough spots caused by the sandblasting. Often the old paint is harder than the stucco, so as the abrasive cuts through the paint it also cuts into the stucco. We find that removal of loose paint is the best that can be done in order to leave the stucco intact.