Double wearing floor finish in one coat. Double-Duro has been specially formulated to give you the finest floors with the least amount of effort for the longest time. Double-Duro's remarkable formulation means that you only put down one or two coats - saving you time, labor and material! One coat is equal to two plus coats of ordinary finishes and lasts twice as long. applied properly, will produce a deep wet look gloss with minimal maintenance. .