Unless the scale or indicator is rated IP67 or higher and the manufacturer’s instructions permit it, do not submerge it in water or pour or spray water directly onto it. Clean it using a damp, soft cloth or plastic scouring pad, clean water where possible and a mild, non-abrasive detergent. Do not use acetone, thinner, other volatile solvents, steel pads, wire brushes, scrapers or anything that could scratch the surface.