The guys who did our block renovation used Murex to repair the underside of a masonry cill that had crumbled off. They drove some screws in to give it some purchase before applying but it held amazingly well. They did say it was a bastard to sand though.
The guys who did our block renovation used Murex to repair the underside of a masonry cill that had crumbled off. They drove some screws in to give it some purchase before applying but it held amazingly well. They did say it was a bastard to sand though.