A formulated solution for the regular cleaning of surfaces already treated with Duro-Finish®. Duro-Maintain is also an excellent, low-cost, multi-purpose cleaner, for household or commercial use. While it is mild to surfaces treated with Duro-Finish®, it still has the strength to permanently remove serious stains from carpets and upholstery including urine and rust stains. Please note that the 16-oz bottle is not currently available. Duro-Maintain is available in gallons and larger sizes.