CERTI-VEX AC1315 Satin is a acrylic co-polymer, solvent-based, non-yellowing curing, sealing, hardening, dust proofing and water repellent compound that is tough, chemical resistant, and long lasting. The product is designed to protect and enhance exterior new and existing concrete, stamped, decorative and exposed aggregate concrete and architectural horizontal and vertical sections where a clear, low sheen/satin finish is required. Certi-Vex AC 1315 Satin also provides protection from the damaging effects of water penetration and staining. Certi-Vex AC1315 Satin features breathable technology which allows moisture vapor to pass through rather than becoming trapped, reducing whitening, peeling and flaking.