(754) 223-2465  CONTACT US

Clean Oil From Concrete Sunrise

Tile Sealer for Ceramic Tile

The reasons we here at CoverTec, get asked about a ceramic or porcelain tile sealer, normally center around appearance, sanitation and improved slip resistance. For example you have a tile that is supplied in matte finish and what you really want is for high gloss wet look.  Alternatively your floor is too slippery and you want to make safer.


tile sealer, sealer for procelain, ceramic tile sealerPerhaps it is old ceramic tile that has began to get a worn out and faded in its appearance and you want to rejuvenate and bring back the luster of the tile.  If the ceramic tile is in your business, maybe the rest rooms or reception areas, where first impressions count, then dirt and grime build up in the grout joints can be especially unappealing and unsanitary.
You could replace all the tile, but that can be very expensive. 

If your interested in cost savings then, you might want to consider sealing your tile floor with a long lasting clear gloss sealer that will rejuvenate and protect the floor.




 A  new coat of clear tile sealer can give your tile and grout a whole new look, for a much  lower price tag than replacing the whole tile floor.

Is Clear Epoxy an option?

Epoxy products are very tough and chemical resistance and  can be available in high gloss. However  epoxies  will yellow in sunlight or UV light source.  So around widows doorway under strip lights any light source your  clear epoxy is going to yellow.  This could happen in a matter of days or months even if the product contains UV inhibitors.  Eventually its going to yellow.

Is Acrylic an option?

The nice thing about acrylic is that the are easy to apply relatively inexpensive and UV resistant. So they can be used inside or outside in direct sunlight. However adhesion to ceramic tile is an issue.  Whilst is is possible to effectively seal the gout with an acrylic sealer its is very difficult to get a long lasting bond to a hard ceramic  or porcelain tile surface.

Polyurethane coatings

sealer for ceramic tile, tile sealer, porcelain tile sealer, wet look porcelain tile, tile and grout sealer

Wood look Porcelain tile sealed with GlazeGuard Gloss

A polyurethane clear tile sealer is especially well suited for such areas as entryways, bathrooms, kitchens, hallways, and other areas where high traffic and exposure to water and dirt might make other materials less practical. Polyurethanes are tough, durable very UV resistant so will not yellow even in direct sunlight. Other key benefits include chemical resistant, highly water and stain resistant and they can be supplied in matte, satin and high gloss finish. It is important to make sure the polyurethane tile sealer is formulated to bond to ceramic tile.  Products are available with adhesion promoters for that purpose.








Surface preparation

Proper preparation is critical to ensure an adequate bond. The ceramic and grout must be thoroughly cleaned with an appropriate  cleaner. For cleaning and restoring old ceramic, porcelain tile and grout to like new condition, we recommend using an alkaline cleaner formulated for ceramic and porcelain tile. This will cut through tough grease, soap scum and soil stains. For shower stalls and outside applications we recommend you use an acid based cleaner to lightly etch the surface and ensure greater adhesion in wet wet conditions. This can also remove tough, hard water deposits, grout haze and efflorescence.


New Tile Sealer System for Ceramic Tile

Specially formulated polyurethane coatings offer a very cost effective opportunity to renovate existing ceramic  tile and grout rather than opt for  replacement. Cost savings  can be realized when you don’t have to replace tile  but  also generate like new appearance by coloring  the grout and sealing the tile an grout with a tough clear sealer that last for years.

Share this post

Comments (34)

  • Tammy Varnado

    I have a rock bottom shower. Just finished cleaning the grout really well. Can I apply a couple coats of sealant? What do you recommend? It isn’t near a window. Does it become super slick? Can an average person apply it?

    March 26, 2017 at 8:39 pm
  • Laurie Edwards

    Hi. We had new tile laid in our bathroom and the contractor left a weird film on the tiles. I don’t know if it’s glaze or if the grout was spread onto the tiles and never cleaned off. It has now hardened, won’t come off and we can’t afford to retile. When I scrubbed the floor today I noticed when it was wet, the glaze/grout could not be seen on the tiles. What do you recommend to use that would keep the appearance of a wet floor and is long lasting?

    April 9, 2017 at 6:33 am
    • Charles Idowu

      Hello Laurie,

      Thanks for contacting CoverTec. We have helped solve this problem before. It is grout haze that has been left the surface of your tile.
      We recommend that you clean the tile and grout with our CT-50 then rise off and allow to dry. Then seal the tile and grout with GlazeGuard Gloss
      or GlazeGuard Satin( semi gloss) finish. GlazeGuard has been developed specifically to bond to ceramic and porcelain tile. It will give your grout and tile a long lasting wetlook. It will also make the surface much easier to keep clean. Please note the grout will darken too, just like when it gets wet with water. Please visit these links for more details https://covertecproducts.com/product/ct-50-concentrate/ https://covertecproducts.com/product/glazeguard-gloss/

      April 9, 2017 at 6:40 pm
  • Cindy

    my 470 square feet patio finished with ceramic tiles started to leak after seven years. There is no appearance for any damages of the tiles, maybe the water went through between the tiles. Wonder if any sealer will work out for my situation?

    April 24, 2017 at 11:50 pm
    • Charles Idowu

      Thank you for contacting CoverTec.

      We sell a product called GlazeGuard that has been used to sucessfully seal outside ceramic tile. GlazeGuard is a tough water based polyurethane sealer specifically developed to bond to ceramic and porcelain tile. It has some flexibility and will provide a clear protective seal to the tile and grout. However for outside applications you do need to check for tile movement. GlazeGuard will not bridge moving cracks in the grout. These will need to be fixed first.
      Please see link below.


      For outside use the tile and grout needs to be cleaned with a mild acid acid based cleaner such as our PreTreat.


      I trust this assists.

      April 29, 2017 at 9:31 pm
  • Yogesh shelke

    Hi, I am starting 3d tile factory. After printing tiles by uv paint I want transparent coating layer on it for ware resistant and anti sleep and protect paint. And it have lifetime durability. Your product same for this please contact me.

    May 4, 2017 at 6:12 pm
    • Charles Idowu

      Hello Yogesh,

      Thank you for contacting CoverTec. We have a number of customers using our GlazeGuard clear sealer to coat and protect printed tiles. However I am not aware of any product that will have a lifetime durability! Especially if it is subject to foot traffic. GlazeGuard lasts 3 to 5 years (depending on amount of traffic) before needing a top coat. I trust this assists.

      May 6, 2017 at 8:44 pm
  • Vic Dwarka

    Hi I have a swimming pool in tile and the floor is leaking. Is there any product that can be applied on the tiles to create the waterproofing.

    Please advise



    May 4, 2017 at 8:58 pm
    • Charles Idowu

      Hello Vic,

      Thank you for contacting CoverTec. Unfortunately we don’t make any product that can waterproof tiles underwater.

      May 6, 2017 at 8:39 pm
  • Deb Rhodes

    I paint on bath room white tiles with alcohol inks. I want to use them as coasters and tiles in my shower. I can seal them with anything with alcohol in it or it will take off the ink designs. Can I use one of your your products?

    May 9, 2017 at 12:01 am
    • Deb Rhodes

      I meant to say I can NOT seal them with any product containing alcohol.

      May 9, 2017 at 12:04 am
      • Charles Covertec New

        Yes Deb,

        You can seal using our GlazeGuard Sealer. This product is water based and we have customers using the product to protect tiles printed with ink.
        We sell sample kits if you want to test the application. https://covertecproducts.com/product/sample-kit/

        May 15, 2017 at 12:08 am
    • Charles Covertec New

      You can seal using our GlazeGuard Sealer. This product is water based and we have customers using the product to protect tiles printed with ink.
      We sell sample kits if you want to test the application. https://covertecproducts.com/product/sample-kit/

      May 15, 2017 at 12:09 am
  • Michelle

    I have black ceramic tiles in my kitchen. They always look dirty from water stains or foot prints. Is there anything I can put on them to help resist some of these marks?

    July 2, 2017 at 11:35 pm
  • Maria Alexander

    I have just had my family room redone in ceramic tile which is very matte. I like the tile, but the room looks a little dull. What is the best product to give it a wet shiny look, and how long will it last?

    July 4, 2017 at 4:36 am
  • Gene Sharkey

    I have a matte ceramic tile floor and it is very dull. Can it be cleaned with a floor scrubber brush on a buffer and if so, what can I put on the tile to make them shinier. Also is there a sealer that you recommend to put on it.
    Thanks in advance for your help.

    July 27, 2017 at 4:12 pm

    Hello Shobana, If you clean the tile with good tile cleaner you can seal with GlazeGuard. Use gloss if you want high shine or satin finish if you want semi gloss.

    July 29, 2017 at 12:48 am
  • anthony montelongo

    hello, im cutting stone for my bathroom floor. i want to coat the stone so it is smooth to the soles of my feet. do you have a product for that?

    August 5, 2017 at 4:42 am

      Hello Anthony,

      It depends on how rough the surface of the stone. Our GlazeGuard sealer can be used to seal stone an leave a smooth surface. However GlazeGuard is applied in a thin coat. If the stone is very rough and the sealer need to be applied very thick then I would recommend using an epoxy coating.

      September 3, 2017 at 11:21 pm
  • Maureen

    I used a grout cleaner on my unglazed ceramic tile. When I cleaned it off, the dirt came off the grout, but the tiles themselves have splotchy white spots on them. I rinsed the tiles several times but the uneven color remains. The tiles are about 11 years old.

    August 7, 2017 at 1:00 pm

    After I using some stain remover to remove the grout dirt, my homogenous ceramic tile lost its gloss. Now it has left patches of dull spots. Can I use your tile sealer to regain gloss to those patches and which type should I buy. Also, can I get your products in Singapore. Thanks and best.

    August 11, 2017 at 9:28 am

      Hello Fanny,

      Our GlazeGuard tile sealer is developed to seal the tile and grout. It would be difficult and expensive to use just for the grout. In addition we currently do not have an agent in Singapore so we would have to ship direct. Sorry we could not be more helpful.

      September 3, 2017 at 11:15 pm
  • Meg

    I have a porcelain sink that I want to paint a design on for a bathroom in my house. What kind of sealer would be appropriate to use over this?

    August 16, 2017 at 9:42 pm

      Hello Meg,

      We do not supply any sealers appropriate for a porcelain sink. There are product especialy made for this application. Please see link below. I trust this assists.

      September 3, 2017 at 11:12 pm
  • Patti

    Hi. I recently bought a house and will be redoing the bathrooms soon. I plan to sand the tile and paint them. Going to use an epoxy and then paint. Do you have a product that will protect the tile once I do that?

    August 23, 2017 at 12:11 am
  • Ilsay

    Just finishing bedroom with ceramic tiles, noticed that while wet they look as if spotted. I want to make them water resistance or less absorbent. What do i use!
    Thank you

    August 23, 2017 at 6:31 pm

      Hello Issay

      Thanks for contacting CoverTec. I recommend our GlazeGuard sealer for your ceramic tiles

      GlazeGuard is a tough clear sealer specifically developed to bond to ceramic and porcelain tile. GlazeGuard will provide a hard wearing water resistant barrier across the tile and grout and make it much easier to clean.

      September 3, 2017 at 10:48 pm
  • Snooks Martin

    Can you apply this product over an Epoxy Grout?

    August 25, 2017 at 7:01 pm

      Hello Martin,

      Yes you can apply this GlazeGuard over epoxy grout if you apply within the first 48 hours of installing the epoxy grout. After 48 hours you need to lightly sand the surface of the grout in order for the GlazeGuard to stick to the epoxy grout.

      September 3, 2017 at 10:35 pm

Comments are closed.