Betco Hard As Nails floor finish uses internally cross-linked polymers to build a harder, more durable finish film. The chemistry delivers a high-gloss, long-wearing result that cures faster and harder than standard metal-interlock finishes, a labor-saving advantage for educational and retail facilities with little time for floor burnishing. Packaged as a 5-gallon bag-in-box. Safety Data Sheet (SDS) available.