PPG Perma-Crete Color Seal professional coating. This is a high-performance, acrylic-based sealant and colorant engineered specifically for use on concrete and masonry surfaces. It is designed for bothInterior/Exterior applications.
This technology allows the stain to be flexible so it can help wood to withstand more of the expansion and contraction that naturally occurs when it gets wet and then dries, or gets cold and then hot and causes it to crack.