sentences:  Process speeds are generally not as fast as conventional dry abrasive blasting when using the equivalent size and type of media, in part because the presence of water between the media and the substrate being processed creates a lubricating cushion that can protect both the surface and the media, reducing breakdown rates.Reduced impregnation of blasting material into the surface, dust reduction and the elimination of static cling can result in a very clean surface.However wet blasting of mild steel will result in immediate or 'flash' corrosion of the blasted steel substrate due to the presence of water.