Ultimate Porcelain Tile Sealer with Hybrid Formulation Technology is a VOC-compliant, easy-to-use, fast-curing sealer for all porcelain tiles. Use before grouting to protect the micro-pores of porcelain tiles from staining during the grouting process and to make the grout cleanup much easier and faster. Use after installation to help keep the tiles clean, easier to maintain, and looking like new for years to come. Easy wipe-on application!