Surecrete 35104015 1 gal ColorTec Acrylic SB WTB is a colored water-based outdoor concrete paint and sealer. Acrylic 30% solids, low VOC (less than 100 grams per Liter), strong binding, color, satin acrylic sealer for overlays or any cement based product. Our water base colored concrete sealer contains a hybrid, self-cross-linking, acrylic resin with built-in water repellents and tenacious penetration and adhesion.