8105 CrownSeal Acrylic Polyurethane Primer/Sealer is a low viscosity, two-component acrylic polyurethane designed as a primer for Polyurethanes, such as 8110 CrownSeal CRU and as a concrete sealer. It is a film-forming sealer that leaves the surface with a wet look. It is a non-yellowing UV stable sealer that is available in clear gloss and clear satin. It cures to an inert, tough, concrete sealer. The recoat window, different than all other polyurethanes, is limitless, just make sure the surface is clean and free of contaminates. It is ideal for use as an irregular surface sealer, such as cementitious knock-downs, where an acrylic sealer is unacceptable. For added durability, place a second sealer coat. Apply 8105 CrownSeal Clear between 300 to 350 sq. ft. (27.9 to 32.5 sq. m.) or 8105 CrownSeal Clear Satin between 400 to 450 sq. ft. (37.2 to 41.8 sq. m.). (Not intended for use as a primer for epoxy coating or cementitious overlayments.) It is VOC Compliant in all states and provinces in North America.