SD-20 is a concentrated, synthetic all-purpose cleaner designed to accomplish an unusually broad range of maintenance tasks at low cost. Formulated without soap, free alkali, or ammonia, SD-20 is an "all-surface cleaner" and may be used on floors, painted walls, woodwork, marble, plastic, metal and other hard surfaces impervious to water. SD-20 mixes well with hot or cold, hard or soft water and may be applied with a sponge, mop, or other appropriate equipment. The product was authorized for use by the USDA in Federally inspected meat and poultry plants.