Porcelain Tile Sealing

Written by ryan lawrence
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Porcelain Tile Sealing
Seal the grout to prevent stains and mildew infestation. (Hemera Technologies/Photos.com/Getty Images)

Preserve the pristine beauty of your freshly laid porcelain tile by finishing it with a sealer. Even if you porcelain tile is glazed, it requires a sealer to protect the grout from stain and mildew infestation. Learn the proper way to apply tile sealer, or you may compromise the surface's beauty. If your tile is not glazed, apply a special type of protective finish that will prevent stains and make cleanup a snap. Take the proper precautions before you tread on the new surface coating, or you could create subtle flaws.

Skill level:
Moderate

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Things you need

  • Sponge
  • Water
  • Masking paper
  • Professional painter's tape
  • Canvas dust sheets
  • Grout sealer
  • Paintbrush
  • Lint-free cotton towels
  • Foam roller cover
  • Roller frame
  • Porcelain sealer
  • Red rosin paper
  • Nylon pad

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Instructions

  1. 1

    Wash the porcelain tile, using a sponge and clean, warm water. Let the tile dry for two hours.

  2. 2

    Cover areas adjacent to the porcelain tile, using masking paper and tape. If you are sealing vertical tile, place dust sheets on the floor.

  3. 3

    Apply grout sealer to the tile, focusing primarily on the grout. Let the sealer penetrate the grout for five to 15 minutes.

  4. 4

    Wipe the grout sealer from the face of the tile, using lint-free cotton towels. Stop here if the porcelain tile is glazed.

  5. 5

    Seal unglazed tile by applying a porcelain sealer, using a roller. Roll forward and backward, moving toward the room's exit point. Let the sealer dry for four hours.

  6. 6

    Do not walk on the sealer for 24 hours. If you must walk on the tile, cover it with red rosin paper first. Remove the paper after 24 hours.

Tips and warnings

  • If you cannot remove dried grout sealer from the tile facing, wipe it with a clean towel slightly dampened with grout sealer; then use a nonabrasive nylon pad to loosen the residue. Once the residue is loosened, wipe it free using another fresh, clean towel.

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