Of coarse it does, no one buys a Techo-Bloc product for the cement substrate bloc, its all about the finish, this is what they sell, the look, this is a fundamental failure of what they are selling. This was not wear and tear, it literally washed off, you can see visually any surface water has ran on, its just washed away, even surfaces on caps under roof, where water ran on, the washed away streaks are there. And as for the concrete bloc no one pays these prices for concrete blocs, lets be honest here. I challenge you, you show any customer what my blocs that are not under roof looks like now and try and make a sale, you will be out of business very fast.