Prosoco Inc.’s Consolideck is a water-based, VOC-compliant concrete protector that blocks staining from oil, water and other contaminants on concrete floors. In ASTM D1308 stain-resistance testing, the protector kept oil out of concrete after four hours of exposure, a goal previously met only by solvent- based penetrating treatments. The substance does not trap moisture or change the floor’s appearance. Application is done with low-pressure spray, a sponge or roller.