To clean your Salo bath unit, use warm water and a non-abrasive detergent or foaming agent. Do not use ammonia or any cleaner containing ammonia. Abrasive cleaners should never be used on the surface, as they scratch, discolor, and dull the surface. If a stubborn build-up appears, use an automotive polishing compound, such as DuPont No. 7, followed by an application of a high quality automotive paste wax; or use a polishing product designed for use on fiberglass. This will restore the surface to its original shine. Preventive maintenance would also include application of such a polishing agent every three to four months.
Drying your Salo unit with a soft cloth or towel after each use goes a long way in maintaining a shiny surface.