Q: Which type of floor finish provides the most durable coating, oil-based polyurethanes or water-based polyurethanes?

A: Second-generation floor finisher Michael Purser, of the Rosebud Co. in Atlanta, responds: Both products are good, but my preference is for waterborne urethanes, which were introduced for residential use around 1987. They stumbled out of the starting blocks with a few problems, but those were dealt with fairly quickly. Since then, waterborne...

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