Buzz
Penetrating grout sealers help prevent staining and keep grease from penetrating the grout, while other non-penetrating grout sealers create a protective barrier against water and stains. These products are recommended for grout in natural stone, ceramic, and porcelain tiles found in bathrooms and kitchens. This guide will walk you through the process of applying grout sealer.
Steps
Application of Liquid Grout Sealer
Allow new grout to set for 48 to 72 hours before applying sealer. Existing grout should be cleaned and dried before reapplying sealer.
- Ensure grout lines are not cracked, chipped, or otherwise damaged before applying sealant. If they are, repair the grout and wait for the required 48 to 72 hours before applying sealer.
Secure baseboards and adjacent surfaces with masking tape to prevent unintended staining.
Use a foam brush, paint pad, or small roller to apply the sealer evenly, ensuring complete coverage of grout lines. If sealer accidentally gets on tiles, promptly wipe it off with a damp cloth.
Allow the initial coat of sealer to permeate the grout for 5 to 15 minutes before applying a second coat. Wait an additional 5 to 15 minutes.
Commence wiping off excess sealer after 5 minutes using a clean, dry towel suitable for the task. For any dried residue on tiles, utilize water and a white nylon pad or cloth to remove it.
Permit the grout sealer to fully cure. Most sealers are ready for foot traffic within 2-5 hours, but keep any potential stain-causing substances away from the grout for 72 hours. Complete sealer curing typically takes 24 to 48 hours.
Assess the efficacy of the grout sealant by flicking a few drops of water onto the grout line. A reliable grout sealant will cause the water to bead on top of the grout. If the grout absorbs the water, reapply the sealer. Repeat this test at different locations along the grout lines.
Instructions for Using Aerosol Grout Sealers
Vigorously shake the grout sealer can for at least a minute before application. Then, aim the nozzle at the grout line to be sealed.
Depress the nozzle to dispense the sealant, ensuring that it is sprayed from a distance of 10 to 15 inches (25 to 38 cm) away from the grout lines. Proceed along each grout line.
Remove any excess sealant from the tiles using a clean cloth. If necessary, dampen the cloth with warm water to eliminate dried sealant. Unlike liquid grout sealers, spray sealants can be wiped off immediately after application.
Test the sealant by placing a droplet of water after one hour. Apply an additional layer of sealant if the grout absorbs the water.
Let the sealant undergo the curing process. The treated area is safe to walk on once the sealant has dried to the touch. Complete curing typically takes 24 hours.
Tips
- Various manufacturers have different waiting periods and instructions for their products. Always refer to the directions on your product before application.
- Some grouts incorporate the sealer within the grout itself. If this is the case, a separate penetrating sealer is unnecessary. However, be mindful that quick action is necessary when using this type of grout as it dries rapidly.
Warnings
Ensure that the temperature of both the tile and grout falls within the range of 50°F to 80°F (10°C to 26.6°C) during the sealing process.
Things You'll Need
- Gloves and eye protection
- Painter's tape
- Brush or applicator
- Cotton cloths
- Water
- White nylon pad
