✨Sealing tile✨ It's important to seal natural stone like marble, travertine, slate, river rock, etc. Stone is porous and can absorb things that can create stains or discoloration. Sealing will also prevent grout from absorbing and filling in pores that make it difficult to remove grout and haze. There are many sealers out there and have claims of many different features. The two commonly used sealers are: Penetrating sealers (enhancing; brings out more color) Topical sealers (semi gloss, high gl