32 oz. HydraGUARD Grout Concrete Paver Cement and Tile All-in-One Stain Efflorescence and Waterproofer

HydraGuard has a surfactant built in that will dissolve the white powders. Secondly the silicone and paraffin will seal the grout and stone tile if that is what you installed.

VSHAW, Thank you for the question. We haven't tested this on a chimney application before that is exposed to serious harsh conditions like this. Aging is another unknown for the chimney and sealer used. If the grout isn't cracked then you will see hydrophobic qualities to the solid grout and brick. However I would test this first and recommend testing with any variety of products to find the best match for your project. I would also recommend a chimney expert inspect the chimney prior to sealing and make sure the grout and flashing are all in order.

We have developed a product that offers a gloss finish. Once this product is commercially available we will put it on the market. In the meantime feel free to reach out to us and get on our email list so we can send you updates on current product offerings. If you don't hear from us immediately its cause we are always working on improving products we have and inventing new formulas.

As Bigred stated. Cement is like a two way sponge with porous highways. We haven't been approached to seal for this type of application. I would run a 3 month test to see if our active ingredients can bind and pore block long term before committing. And I would do this on any pore blocking solution. If you want we can send you a bottle free of charge for testing this. Just send me your contact info at this site. https://www.h2obtech.com/contact/

Try it out. We have and it took 2 coats.

I am the patent holder, manufacturer and creator of the product. This product is built for any bathroom floor, stone and polished porcelain tiles, any cement grout, and concrete tiles, any slates. You may use this anywhere you are tiling, grouting, doing any stone work, doing any concrete work. For more information I encourage people to visit and download Techical data Sheet. Watch this https://d1li5256ypm7oi.cloudfront.net/h2obtech/2016/09/hydraguardTDSInstructions-160902-57c9e866bbd27.pdf Also watch the video on how it works here: https://youtu.be/ofjYEDipUyY

If paint is present then no. If paint is not present then yes. I am the patent holder, manufacturer and creator of the product. This product is built for any bathroom floor, stone and polished porcelain tiles, any cement grout, and concrete tiles, any slates. You may use this anywhere you are tiling, grouting, doing any stone work, doing any concrete work. For more information I encourage people to visit and download Techical data Sheet. Watch this https://d1li5256ypm7oi.cloudfront.net/h2obtech/2016/09/hydraguardTDSInstructions-160902-57c9e866bbd27.pdf Also watch the video on how it works here: https://youtu.be/ofjYEDipUyY