Prism Pigments Concrete Colors are pure, synthetic iron oxide pigments containing no fillers that will affect the performance of the concrete mix design. Prism Pigments concrete color applications provide the user with a lightfast, weather resistant, lime-proof, no maintenance finished product. Prism Pigments maintain the highest tinting strength and color consistency from bag to bag. Prism Pigments Concrete Colors are ideal for use for integrally colored concrete in highly visible areas such as driveways, patios, walkways, car paths, curbings, athletic courts, or stamped concrete. A stable, weather resistant color is always the end result.