Techniseal® Rust Remover for Pavers takes out rust from pavers made of concrete. It effectively dissolves stains caused by dripping rusted water, steel streaks, fertilizer granules, etc. Since it contains no muriatic acid, it won’t damage the material. For bare or previously sealed surfaces. To remove fertilizer stains from a large surface, it is recommended to use Techniseal® Pre-Seal Cleaner (141-534).