I had a few moments the other day to sit down with a cup of coffee and search the internet about “sealing granite countertops”, and I came across a website that had some good information, some confusing information, and some really bad information. I have decided not to publish a link to this particular website, but suffice it to say, there are numerous such sites on the web.
Of particular interest was a section that talked about ‘How A Granite Countertop Sealer Works’. A true fact is that most (impregnating) sealers do “slow down the process of absorption”, giving you time to clean up spills that have the potential to leave permanent stains. This is certainly true for high quality impregnators that are either solvent based or water based. What was not indicated in the website is that for some materials, there are topical acrylic sealers that do prevent ALL liquids and spills from penetrating the stone because the acrylic acts as a barrier. Tumbled Travertine, Tumbled Marble and Slate are prime candidates for topical acrylics, but NOT in wet areas, or on exteriors.
Some types and finishes of stone look better using a topical acrylic rather than an impregnator. See the following LINK for slate with a satin finish sealer.
For more information on our professional Protection products, please see LINK.