This water-based, urethane sealer/finish revolutionizes the way hard surface floors are sealed. It eliminates the fire hazards and excessive cost associated with conventional urethane sealers. It is nonflammable and requires no etching before application. The combination of urethane and three other polymers fortify this product to be exceptionally durable and abrasion resistant. It can be applied effortlessly over new and old concrete, slate, quarry, tile terrazzo and marble.