Abatron’s BestBond Crack Repair liquid epoxy concrete-repair compound is applied with a standard caulk gun. Because it will slump when applied on walls, it’s recommended for horizontal applications, like cracks in garage or basement floors. It dries to a hard plastic, so it shouldn’t be used where a flexible joint is needed. A 16-ounce tube fills 10 to 15 linear feet of a 1/4-inch by 1/4-inch crack and costs $13.
Abatron, 800/445-1754, abatron.com.