Removing graffiti from brick, concrete, and other porous surfaces is a safe and easy process with Watch Dog Wipe Out Porous Surface Graffiti Remover from Dumond. As a fast acting, effective, and globe biodegradable graffiti removal and cleaning product, Watch Dog Wipe Out Porous Surface Graffiti Remover is designed to safely remove heavy graffiti from all non-painted, porous surfaces such as brick, mortar, cement, stucco, and pavers as well as natural stone surfaces such as granite, marble, sandstone or brownstone. Information