The Best Stone Sealer for Limestone, Marble, Travertine, Slate, Granite And Other Stone Tiles And Slabs

All stone tiles and slabs should be sealed to protect them from becoming stained.  A high quality stone sealer needs to have a small molecular structure to penetrate deep into dense stone tiles. A good stone sealer must also be resilient to everyday cleaners and contaminates and not break down over time. Stone sealers should keep dirt and stains from absorbing into the stone so that these contaminates can be cleaned up without being absorbed by the stone.

stone sealant reviews

All stone sealers have limitations to how well they can preserve and protect stone tiles and slabs.  Most stone tiles like limestone, travertine and marble are acid sensitive. These acid sensitive stones will etch when they come in contact with acidic substances like cleaners or acidic foods such as vinegar or lemons. There are no sealers that will prevent acid sensitive stones from etching when they come in contact with acidic substances. A high quality stone sealer may be able to lesson then effects of etching or give you a few seconds to wipe away any acidic substances before the acidic substances etches the stone.

Quality stone sealers will have a smaller molecular structure than grout specific sealers.  A high quality stone sealer should also be able to seal grout but a grout specific sealer may not be able to seal stone tiles and slabs. It is impossible and impracticle to seal the stone tiles and seal the grout with different sealers. When sealing stone tiles and slabs you should always choose a high quality stone sealer to seal the stone and grout at the same time.

When testing stone sealers we tested them for durability and resistance to some common food stains.  We first sealed our stone samples and allowed the sealer to cure on the stone for 7 days. We then boiled the sealed stone samples in water. We then cleaned the samples with a common Ph neutral stone cleaner to test the durability of the sealer. We then applied some common food contaminates to the stone samples and allowed the contaminates to dry on the stone samples overnight. After this we cleaned the contaminates off the stone tiles with a pH neutral tile and stone cleaner and checked to see how well the sealers performed in keeping the contaminates from staining the stones tiles.

In our testing we found the StoneTech Bulletproof sealer as well as the Drytreat Stainproof sealers worked best for sealing the stone tiles.  The Stonetech Bulletproof is a water based sealer with the latest microbond technology that penetrates deep into the stone to provide maximum protection for the stone. The Drytreat Stainproof is a much higher VOC solvent based sealer that is also the most expensive sealer tested. These two sealers also worked well to seal any grout between stone tiles.

NATCO Related Articles>

Grout Sealer Reviews

We review the most popular consumer and professional grade sealers to help you choose the best grout sealer.

Read more»
How To Seal Granite Countertop

Sealing and preserving granite countertops is important for keeping them looking beautiful and stain free.

Read more»
How To Seal Saltillo Tiles

Due to Saltillo tiles being extremely porous it is best to seal them with a topical glossy sealer.

Read more»
Sealing A Travertine Tile Floor

Travertine tile floors can become stained and dull looking if they have not been regularly sealed and maintained.

Read more»