When exposed to sunlight, photocatalytic TX Active cements react to resist common pollutants that can dull, stain, or discolor concrete. The self-cleaning TX Arca and TX Aria cements resist pollutants harmful to concrete, such as mold, bacteria, and soot. Eco-friendly TX Aria also reduces some pollutants that are harmful to humans, including carbon monoxide, sulfur oxides, and VOCs. Essroc Italcementi Group. 610-837-6725. www.essroc.com