How to Paint Grout Lines?

Dirty grout can make your tile look old. Restoring grout gives your tiled floor or shower a whole new look. Learn how to paint grout lines and make your grout look new again.
Difficulty: Moderate


Things You'll Need:

  • Tile cleaner
  • Grout stain colorant
  • Small paintbrush
  • Cleaning cloth
  • Scouring pad
  1. 1
    Clean tile and grout with a tile and grout cleaner designed for your type of tile. Allow tile and grout to dry for four hours.
  2. 2
    Carefully paint grout lines with grout stain colorant using a small paint brush that is no wider than the grout line. Work on a small area at a time, removing any grout stain colorant that accidentally gets on the tile with a cleaning cloth.
  3. 3
    Allow grout stain colorant to dry for a minimum of one hour or time specified on manufacturer's directions.
  4. 4
    Apply a second coat of grout stain colorant using the same method as the first coat. Allow it to dry.
  5. 5
    After grout is fully dry. Clean tile and grout with tile and grout cleaner again. If any grout stain colorant is on the tile, scrub gently with a scouring pad to remove.
  6. 6
    Apply a grout sealant to protect grout and keep it looking new.