Fusion Pro? the original stain proof, color perfect grout.* This professional grade sanded grout features unsurpassed stain resistance with no sealing required. Its Single Component? formula is ready to use and easy to spread and clean. Fusion Pro can be installed in commercial and residential environments, interiors and exteriors, and on walls and floors and specifically shower floors. Its patented formulation can be applied on all tiles and has built-in Microban antimicrobial product protection.