Before applying decorative coatings to any surface, either a garage or a basement floor you need to address cracks, holes, and any other surface defect or damage that would interfere with a seamless floor coating. Cracks can be easily addressed using various resin products, mortars and concrete depending on the severity of the crack. When determining which product to use it is going to come down to the size of the crack, required architectural strength, and the return to service time needed. Epoxy and polyurethane resin systems will typically offer superior performance when it comes down to time and strength development.