![Some (not all) of the grout between floor tiles in my bathroom has a white rubbery layer over the top. Does anyone know what it is so I can apply it to Some (not all) of the grout between floor tiles in my bathroom has a white rubbery layer over the top. Does anyone know what it is so I can apply it to](https://preview.redd.it/some-not-all-of-the-grout-between-floor-tiles-in-my-v0-leuorxd2veoa1.jpg?auto=webp&s=8b8118279f66743db3ff7b97c3e506d0996c6557)
Some (not all) of the grout between floor tiles in my bathroom has a white rubbery layer over the top. Does anyone know what it is so I can apply it to
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![Do Grout Pens Work? Sure, But They're Not the Best Solution for Coloring Your Tile's Grout. Here's Why! - The Grout Medic of Northern Virginia Do Grout Pens Work? Sure, But They're Not the Best Solution for Coloring Your Tile's Grout. Here's Why! - The Grout Medic of Northern Virginia](https://groutmedicnova.com/wp-content/uploads/2020/06/grout-staining-company-ashburn-va.jpg)
Do Grout Pens Work? Sure, But They're Not the Best Solution for Coloring Your Tile's Grout. Here's Why! - The Grout Medic of Northern Virginia
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