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CoverTec tile sealers protect ceramic and porcelain tile and grout in the spaces that work hardest: restrooms, showers, lobbies, hallways, and restaurant floors. Each tile sealer in this collection is formulated for ceramic and porcelain surfaces, with finishes and formulas suited to facility teams, contractors, and homeowners alike.

What is tile sealant? Tile sealant is a protective product applied over tile and grout that dries into a layer guarding the surface against stains, moisture, and wear; our ceramic tile sealer guide explains how it works.

Why the Right Sealer for Tile Matters

Porcelain and glazed ceramic are very dense and impervious, and many store-bought sealers are made for porous surfaces, so they can peel within weeks or months. A porcelain sealer needs adhesion promoters to grip that hard surface and hold up to foot traffic and cleaning. Before you buy, learn which sealers work on porcelain tile and why the formula matters.

How to Choose a Tile Sealer

  • Finish: Gloss gives a wet look, satin adds a medium sheen, and matte keeps a flat, natural appearance.
  • Traffic: Two-part polyurethane GlazeGuard® is built for busy commercial floors; CoverShield Tile Seal® is a fast-drying, flat mop-applied option for low to medium traffic interiors.
  • Slip resistance: For wet entries and showers, choose GlazeGuard Plus Anti Slip or mix the CoverGrip additive into your sealer for added traction.
  • Surface: These products work on glazed and unglazed ceramic, porcelain, and stone; polished porcelain, polished ceramic, and polished stone are not recommended.
  • Location: GlazeGuard can be used indoors and outdoors on decks, balconies, and walkways; CoverShield Tile Seal is made for interior floors.

Why Commercial Crews Choose GlazeGuard®

GlazeGuard® Gloss is a water-based polyurethane ceramic tile sealer for tile and grout, designed for floors that see constant use:

  • Adhesion promoters help it bond to dense ceramic and porcelain
  • Dries clear, stays UV stable, and will not yellow
  • Resists chemicals and abrasion in high-traffic areas
  • One coat seals tile and grout on most floors
  • Kits range from 4 oz to 4 gallons, covering about 500 to 800 square feet per gallon

Prefer a softer look? GlazeGuard is also available in satin and matte finishes.

Frequently Asked Questions

Do porcelain tiles need to be sealed?

Dense glazed porcelain resists stains on its own, but grout stays porous. A sealer for porcelain tile protects the grout lines and lets you change the sheen.

How long does a tile sealer last on a commercial floor?

GlazeGuard typically lasts about three years in commercial spaces and about five years in homes, depending on traffic and care.

Will sealing make my tile floor slippery?

Smooth sealed tile can be slick when wet. GlazeGuard Plus Anti Slip or the CoverGrip additive adds traction where floors get wet.

SHOP NOW

Ready to protect your floors? Browse the tile sealers on this page and choose the finish that fits your space. If you need help picking the right tile sealant, call CoverTec at 754-223-2465, email service@covertecproducts.com, or contact our team. Shop tile sealers now and give your tile lasting protection.

Shop tile sealersCall 754-223-2465Contact our team