The Latex-ite 1 Qt. 2X Premium Blacktop Crack Filler is a premium vinyl-polymer blend for blacktop cracks up to 3/8 in. wide. It provides extended life and greater durability than ordinary cold-pour crack fillers. It is very easy to use: Just clean the crack, shake the container and squeeze the rubberized liquid into the crack to seal it. (Note: If product is not available to order in your area that is due to nighttime temperatures. Product may not cure and/or track in late fall and early spring applications).