Photo: What to Consider When Choosing the Best Concrete Crack FillerĬoncrete cracks happen for various reasons. ALSO CONSIDER: Damtite 04072 Concrete Super Patch Repair.BEST EPOXY: PC Products 72561 PC-Concrete Two-Part Epoxy.BEST CURE TIME: DRYLOK 00917 Cement Hydraulic WTRPRF.BEST SEALANT: Dap 18370 Self-Leveling Concrete 3.0 Sealant.BEST FOR THIN CRACKS: Bluestar Flexible Concrete Crack Filler.BEST FOR LARGE CRACKS: Red Devil 0644 Pre-Mixed Concrete Patch.BEST FOR FOUNDATIONS: RadonSeal Concrete Foundation Crack Repair Kit.BEST BANG FOR THE BUCK: Sashco 16210 Slab Concrete Crack Repair Sealant.BEST OVERALL: Sikaflex Self-Leveling Sealant.Keep reading to learn more about repairing these unsightly situations and some of the best concrete crack fillers on the market to do the job. Luckily, the best concrete crack fillers can repair those cracks in foundations, driveways, walkways, sidewalks, patios, and more, making them virtually disappear. Naturally occurring cracks, and those caused by poor design, do happen. Concrete buildings, bridges, and other surfaces that are hundreds of years old are still standing today.īut concrete is not indestructible. While versions of cement are millennia old, modern hydraulic concrete was first created in 1756. Concrete is an incredibly stable and durable material.