STONETECH® Heavy Duty Grout Sealer is designed for cement-based grout and protects against oil and water-based stains.

Uses (Interior and Exterior):

  • Countertops
  • Backsplashes
  • Floors
  • Walls


  • Heavy-duty protection against most stains
  • Protects grout and makes cleaning easier
  • Water-based formula
  • Interior and Exterior Use

Recommended Surfaces:

Cement-based grout for natural stone, ceramic, and porcelain tile.


  1. Apply STONETECH Heavy Duty Grout Sealer directly onto grout lines and joints to thoroughly wet surface using a paint pad, roller or brush. Avoid applying sealer on unintended surfaces.
  2. Allow sealer to completely penetrate into the grout, 5-15 minutes. 
  3. Liberally apply a second coat following steps 1-2.
  4. Wipe up all sealer from the surface of the tile. Use a clean, dry, lint-free, cotton towel or mop to remove excess sealer.
  5. If sealer was not completely wiped off and a residue appears, wipe entire surface with a towel dampened with sealer. Use a white nylon pad to loosen residue and wipe surface with a clean, white absorbent towel.
  6. A full cure is achieved after 24-48 hours; surface use may begin in 4 hours. If use of the surface must resume sooner, cover the treated surface with red rosin paper to protect it until full cure is achieved.
  7. Clean tools used during application with water.
Prices, inventory and promotions may vary by retailer. Please call the store first to check actual availability of this item.