sealer for limestone shower stall

Dear Tammy:

There's no credible answer to your question. If you have to seal a very absorbent sandstone, 1 GL of impregnator will cover no more than 200 sq.ft. at best, each application (you may need 3 or more, depending on the brand of impregnator).

If instead you want to seal a stone that's too dense to be sealed (i.e.: many a mercantile granite, polished marble, etc.) then the coverage is… infinite! J

That said, if it were my own shower stall I would never apply any impregnator to your stone. Natural stone should never be sealed when installed in a wet environment. At best, if you like the way the color deepens when your stone is wet, you may consider applying a good-quality stone color-enhancer like MB-6.

Also keep in mind that the best “sealer” in the entire wild, wild world for a shower stall is the installer. I seldom witnessed shower stall failures due to the wrong stone (only twice). The overwhelming majority of shower stall failures – and I had to deal with a large dose of those during my contracting days – stemmed by improper installation.  

Now remember, it's never too early to think about the proper maintenance of your stone. The issue of what you'll be doing day in and day out to your stone is – as it should be intuitive – vastly more important than its sealing (if and when possible and/or advisable) and it's all too often neglected. As you can tell by reading many of this site's postings, you're not likely to get good information about routine care from your dealer or installer. Don't become another statistic! By logging into the Helpful Hints section of our website at:   http://www.mbstone.com/HH_promo/helpful_hints.htm , you will be able to get the short version of our maintenance guidelines at no charge. The full version of it – a 7-page document considered by many as an industry benchmark, and that also include priceless tips on stone shower stall installation – is available in pay-per-download format in our Educational Literature section at:   http://www.mbstone.com/literature/literature.htm .  

And remember, every single penny of the cost of the literature will be used to support this site and its cause: your cause.

While you are in the “Helpful Hints” section, do spend some time reading all of the interesting FREE articles you'll find in there!

Finally, keep in mind that we need your support to help us helping you!

Will you please read and e-sign our Statement of Purpose at: http://www.marblecleaning.org/purpose.htm?    

By spreading the word about this valuable site among your friend & family and the stone trades' people you've been dealing with, you will be rendering everybody a valuable service!

Thank you  

Ciao and good luck,

Mauri zio Bertoli