This easy to use product fills in all your small cracks. It comes in a paste that allows you to smooth and fill in all cracks using a puddy knife. If you have small cracks in the concrete you will need to fill those in. Epoxies are self leveling and you want to prevent epoxy from running down into the void that the crack has created. If you have any cracks in the concrete you need to order the epoxydoc crack filler paste. It takes just a few minutes to mix, is super easy and fast to apply, and dries in a few short hours. You can also apply EPOXYDOC epoxy right over wet, undried crack filler paste so there is no down time.