Its ugly. Your mortar cracks and your stucco streaks. Replacement and repeated repairs are still ugly, not to mention costly and time-consuming. Forget the concrete powder, mix bucket and big trowel. Just squeeze in Mor-Flexx to repair crumbly mortar, cracked stucco or textured walls. It is easy, fast and it works. Mor-Flexx is textured to blend in seamlessly with mortar and stucco, yet is elastic like rubber, able to span cracks for permanent, years-long repairs. With Mor-Flexx, no one will know you had an unsightly crack.