Xcel Surfaces 528622 Clear Glaze Sealer Milky White 5 gal is a single component, low V.O.C. high solids, waterborne clear acrylic sealer, this product is designed for use as a high-performance clear coat over Xcel Surfaces polymer modified concrete overlayments. Clear Glaze Sealer is the perfect way to bring out and protect the color highlights of any Xcel Surfaces stamped, troweled or stained concrete and natural stone. Clear Glaze Sealer can also be applied over exposed aggregate concrete with Xcel Surfaces top coat.