Products : Care & Maintenance : Sealers : TileLab® Grout & Tile Sealer

TileLab® Grout & Tile Sealer

Economical, easy-to-apply, penetrating sealer that resists most common oil-based and water-based stains. Unlike other sealers, it will not leave a difficult-to-remove residue on the surface. Low-odor, water-based formula.

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Key Features

  • Protects grout and tile against stains


Suitable Tile Types

Seals Saltillo, terra-cotta, quarry and porcelain tile, grout, brick, concrete, masonry and natural stone. Interior and exterior use.

General Surface Prep

Surface should be dry, clean and free of waxes, sealers or finishes. TileLab® Heavy-Duty Stripper & Cleaner or Aqua Mix® Heavy-Duty Tile & Grout Cleaner will clean the surface or strip wax and acrylic finishes. New installations need to be cured 48 – 72 hours before application. Protect painted surfaces. Test product in obscure area to ensure desirable results. Sealer can be applied 48 hours after grout has been installed.

Health Precautions

MAY BE HARMFUL IF SWALLOWED. MAY IRRITATE EYES AND SKIN. Wear skin and eye protection. Contains potassium hydroxide and potassium methyl siliconate. If in eyes, flush with water for at least 15 minutes. If on skin, wash with soap and water. If irritation persists, seek medical attention. If swallowed, DO NOT induce vomiting. Seek medical attention. Keep out of reach of children.

Pre-Grout Sealer/Grout Release

Porous tile, such as clay and Saltillo pavers, can be stained by grout during installation. Sealing the tile before grouting will make grout removal much easier. Apply two coats of sealer according to directions after tile has been bonded for a minimum of 24 hours, or apply to front face of tile before installation.

Application of Product

USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when handling product.

Apply liberally using a new mop, lambswool applicator, sponge or brush. Allow it to penetrate for up to 5 minutes. Immediately wipe off any excess. If first coat has been absorbed, apply a second coat following the same procedure. Porous surfaces may require additional applications. Conduct a test to see if surface is completely sealed after 2 hours by applying drops of water on the surface. If it penetrates immediately, apply an additional coat. If a residue is visible on the surface after drying, remove it with water and a sponge or white polishing pad 60 minutes after application.

Drying Time

2 - 3 hours.

Cleaning of equipment

Clean tools and hands with soap and water immediately after use.

Product Maintenance

Do not use cleaners containing ammonia, acids or bleach. Use an appropriate TileLab® or Aqua Mix® neutral cleaner. Tile industry experts recommend periodic testing of sealed surfaces. Apply a few drops of water on the surface. If it soaks in, a coat of TileLab® or Aqua Mix® sealer will be necessary to keep sealer at peak performance.

Ordering Information


  • 1 Gallon (3.78 L) Bottle
  • 24 fl. oz. (709 mL) Spray Bottle

Warranty Information

Product Warranty

Custom® Building Products warrants to the original consumer purchaser that its product shall be free from defects in material and workmanship under normal and proper usage for a period of one year following the date of original purchase. Custom's® sole liability under this warranty shall be limited to the replacement of the product. Some states, countries or territories do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty will not extend to any product which has been modified in any way or which has not been used in accordance with Custom's® printed instructions. Custom® makes no other warranties either expressed or implied. This warranty gives you specific legal rights, and you may have other rights that vary from state to state or from one country/territory to another.  This warranty is not transferrable.

Product Videos


Coverage Chart

Size Min Coverage Max Coverage
On Polished or Dense Surfaces:    
1 Gallon (3.78 L) 800 sq. ft. (74 M²) 1200 sq. ft. (112 M²)
24 fl. oz. (709 mL) 150 sq. ft. (14 M²) 225 sq. ft. (20 M²)
On Porous Surfaces:    
1 Gallon (3.78 L)(3.78 L) 200 sq. ft. (19 M²) 400 sq. ft. (37 M²)
24 fl. oz. (709 mL) 38 sq. ft. (3.5 M²) 75 sq. ft. (7 M²)

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