If you have a glazed tile surface but you're tired of the grout—or if your between-tile spaces have become discolored or are in disrepair—you might want to consider learning how to paint grout. It's a less-expensive and less-invasive solution than redoing an entire tile surface, and it allows you to quickly freshen the look of a floor, backsplash, or accent area. Even for a novice DIYer, it's simple to learn how to paint grout. Here's how to successfully revamp your grout color.
Note: Have unglazed tile? Grout paint is not recommended, as the tile's porous surface will absorb the paint and may cause permanent stains.
Fix the tiles and grout where possible. There might be areas with broken tiles or disintegrating grout. Clean up and replace what you can. Clean the tile surface using a tile cleaner to inhibit the growth of mold and mildew. Follow the directions closely, including allowing time to let the spray rest on the surface.
Next, you need to tape the tile. If you will clean up paint as you go, you can skip this step. If not, use painters tape to cover the tile, allowing only the grout to show through. This is a tedious step, but important for getting clean lines and a smooth look.
Begin painting. White is fine, but colored grout paint in a darker tone might be a better option. It will hide stains better and provide a welcome contrast. Use a foam brush as wide as the grout.
Work in small sections at a time with small amounts of paint. Use long strokes to apply the grout paint. Paint one coat over the whole surface and clean as you go. Let dry completely, according to the manufacturer's recommendations. Then complete a second coat, and a third if needed.
Follow the instructions on the grout paint regarding cleanup and tool cleanup. A toothbrush used specifically for cleaning is a handy tool for cleaning grout. If necessary, remove painter's tape. Seal the grout. This will help maintain the surface color and protect from dirt and stains. As you seal, make sure no dust or dirt is on the grout—if there is, it will get trapped beneath the seal.
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