Smith’s Poly-SB is a 2-component, low viscosity, Acrylic-Modified Solvent-based Polyurethane primer/sealer used as a protective or maintenance wear surface over decorative concrete, pavers, concrete stains, etc. with superior adhesion, abrasion resistance, gloss retention, stain resistance versus typical low solids single component solvent-based acrylic sealers. Available in both Gloss & Low Sheen finishes.