Pentra-Pel™ (SI) is a penetrating lithium stain guard designed for interior or exterior concrete, stone and masonry surfaces. This product creates a protective barrier that resists staining. It densifies, seals, and repels while maintaing breathability and doesn’t alter the appearance of the substrate. Pentra-Pel™ (SI) is easy to use and is VOC compliant. Learn more with ATC today!