StoneTech Heavy Duty Grout Sealer

StoneTech Professional
(2 reviews)
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StoneTech Heavy Duty Grout Sealer

NOTE: StoneTech Professional is now distributed by Laticrete International. Same great Dupont formula, but now with a Laticrete Label.

Confused by Sealers? Take a look here: Sealer Buying Guide

Features and Benefits:

  • Heavy duty protection against most stains
  • Protects grout & makes cleaning easier
  • Natural look
  • Water-based, low-solids coating
  • Interior & exterior


Where to Use:

StoneTech Grout Sealer is ideal for use on grout for natural stone, ceramic, and porcelain tile.

Expected Wear:

3-5 years on interior surfaces & 1-3 years on exterior surfaces.


Note: Directions may vary depending on size. Always test in a small inconspicuous area with a 24-hour cure time to determine ease of application and desired results. Allow new grout installations to cure for a minimum of 72 hours prior to application. Make sure surface is clean, dry and free of waxes and coatings. Ensure that the surface temperature of the stone is between 50-80°F before sealing.

1. Mask off and protect any baseboards or adjacent areas to avoid splashing and overspray onto surfaces not intended to be treated.

2. Liberally apply using a paint pad, low-pressure chemical-resistant sprayer, narrow roller or natural hairbrush, focusing on the grout joints.

3. Allow StoneTech Grout Sealer to completely penetrate into the grout, 5-15 minutes.

4. Liberally apply a second coat following steps 2-3.

5. Wipe up all sealer from the surface of the tile. Use a clean, dry, lint-free, cotton towel or mop to remove excess sealer.

6. If StoneTech Grout 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 follow with a clean, white absorbent towel to remove.

7. A full cure is achieved after 24-48 hours; foot traffic may begin in 4 hours. Cover with red rosin paper, if foot traffic must resume before the recommended time periods have passed.

8. Clean equipment with water.

Available Sizes (and Coverage):

  • Pint: 75-125 sq. ft.
  • Quart: 150-250 sq. ft.
  • Gallon: 600-1,000 sq. ft.

StoneTech Heavy Duty Grout Sealer Technical Data Sheet

StoneTech Heavy Duty Grout Sealer Safety Data Sheet



  • 5

    Posted by Debre Tally on Dec 29, 2022

    Love this product!

  • 5
    Grout Sealer

    Posted by Ann Marie on Dec 29, 2022

    A quality sealer.