Carboseal Flex Joint is a UV resistant, 100% solids, two component, heavy duty, semi-rigid polyurea joint sealant designed for filling and protecting control joints and saw cut construction joints in industrial and commercial floors. Developed to fill typical construction joints in order to protect joint edges from spalling and to seal open joints. Using Carboseal Flex Joint will create a longer lasting floor and reduce the areas where bacteria can hide and grow. It has the unique benefit of being able to be shaved within minutes or up to 24 hours later.