How to Treat Old Grout So That New Grout Will Stick
- 1). Place a drop cloth or old sheet over the areas in the room. Removing grout is a dusty, messy job. Empty the room of unnecessary decor or other furnishings.
- 2). Wear safety goggles and a dust mask to prevent breathing the dust or getting debris in your eyes.
- 3). Remove the old chipped, stained or cracked grout with a grout scraper and grout saw. Look for these tools at hardware and home supply stores. A grout scraper may be all that is necessary if the area is small.
- 4). Scrape out the old grout to a depth of at least 3 or 4 mm. This enables the new grout to stick well. Apply masking tape to the tile edges to avoid nicking the tiles when using the grout saw.
- 5). Vacuum the area several times to ensure you remove all the dust and grit. A clean surface is vital to the ability of the new grout to adhere well.
- 6). Wet a cleaning cloth and wring it out well. Wipe out the gaps between and around the tile to ensure the surface is clean and dust-free before applying the new grout.
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