Clear Guard WB Urethane Sealer is a two-component aliphatic polyurethane coating that provides a high-gloss, abrasion-resistant film suitable for sealing interior concrete floors and exterior concrete hardscapes. Water reducible, VOC-free, and nonyellowing, the sealer enhances concrete color while protecting surfaces from dirt and staining. It also minimizes effects of and exposure to deicing salts, gas, or oil, aliphatic solvents, acids, and other chemicals. Butterfield Color. 800-282-3388. www.butterfieldcolor.com..