Hi, AP: Stucco and concrete are two different animals, so you have to be careful. Any type of rough handling or scraping or chiseling can break stucco such that pieces can crack further or fall off. Superglue, from a tube with an extremely fine (pin-size) opening, can be a solution. Find an unobtrusive crack and try a little stretch. If for some reason this doesn't work, your next step would be an extremely fine bead of clear silicone caulking. Good luck!
Hi, AP: Stucco and concrete are two different animals, so you have to be careful. Any type of rough handling or scraping or chiseling can break stucco such that pieces can crack further or fall off. Superglue, from a tube with an extremely fine (pin-size) opening, can be a solution. Find an unobtrusive crack and try a little stretch. If for some reason this doesn't work, your next step would be an extremely fine bead of clear silicone caulking. Good luck!