Stonetech Impregnator Pro is a professional level solvent based tile, grout and stone sealer.  It has got a long standing reputation as an excellent grout and stone sealer that will absorb into even the densest stone tiles.  It is using the older fluoropolymer based sealant technology and is a fairly expensive sealer.  It also has a fairly high VOC level.

The stonetech impregnator did not perform as well as the stonetech bulletproof sealer for sealing grout.  As you can see some of the contaminates stain marks and the yellow mustard spot stained the grout. This product uses the older fluoropolymer technology while the Stonetech Bulletproof water based sealer is touted as a newer advanced sealant product. As it turns out the water based Stonetech Bulletproof sealer with the newer microbond technology did do a lot better in our testing. 

Still many stone professionals prefer this solvent based sealer for sealing stone tiles and grout. Solvent based sealers will always seep deeper into dense stone tiles then the water based sealers.  While this sealer did not perform as well for sealing grout it is still a preferred sealer for sealing the dense stone tiles such as travertine, marble, granite and slate.

It is important to know how to properly seal your grout.  Click here for instructions on how to seal grout.

Cleaning your grout before you seal it is also important to avoid sealing in the dirt on your grout.  Click here for instructions on how to clean grout.

 

Grout Sealer Review Testing Procedure               StoneTech Bulletproof Review