We love the look of white marble countertops, but what about the age-old question of marble surface protection? It's a discussion that generally ends in, "Get a marble sample and test it out". While few of us have actually done this, Greg over at The Petch House conducted extensive and brutal marble tests and documented the process for us all to see...

The Petch House's test started with a sample from the countertop slab. Sealant was applied to one half and the other was left as-is for a comparison of sealed and unsealed marble. Then the sample was covered in all kinds of acidic foodstuff and beat up with a dinner knife.
Testing continues here, after the sample has a chance to rest a bit, and final results and observations are here. Thanks to Greg at The Petch House for putting this sample to the test and sharing it all with us.
AT related post: Good Questions: Why Not Do White Marble Kitchen Countertops?.
Top photo: ABKA. Others: The Petch House
This is fantastic, I think you were reading my mind. Perhaps some tests can be done with every day bathroom products. I am dying to have marble in my walk-in shower area. Thanks!
view nix's profile
Regarding bathroom products: My parent's house cleaner brought a helper one day who used toilet bowl cleaner to clean the entire brown marble shower. It etched and emoved the polished finish from the whole thing. They had to have a marble restorer completely refinish it. You never want to use anything that states on the bottle that it cannot be used with marble.
I have limestone floors in the bathroom and searched for a bathroom cleaner that was not harmful to marble in case my house cleaners accidentally got any on the floor. I finally found that Green Works by Clorox has a bathroom cleaner that is safe around marble.
view LilyC's profile
I think it was here that I was reading rather recently, or it had a link to someone who had a rather thorough faq about marble, why people fear it and how to get over that, including a similar litany of tests. I love marble. I wish I could find that link. Hey if it's a pain in the neck, it's still marble and not some compromise.
view K T G's profile
Can anyone recommend a good marble sealer? I have a marble coffee table from Room and Board that could use it.
view sfBarb's profile
Well, that first image seals the deal for me. I want a marble back splash!!
view canadian in swedish clothing's profile
I recently stayed in a hotel that used marble for their bathroom countertops. They used some sort of very thin plastic (sort of like the film over your cellphone) that adhered to the marble. Not only could you not see it without close inspection, it made cleaning very easy, and of course, protected the finish.
view guerilla's profile
I have white marble countertops in my kitchen. I have found that even with sealer they do stain and are very sensitive to heat. They are also soft. Get yourself a nice cutting block if you MUST have them like I did!
Home depot's sealer is just okay. They also have a cleaner that I use occasionally too.
view denverdigs's profile
When we remodeled our kitchen, I narrowed the countertop options to marble or Caeserstone. I did a lot of research on marble. The bottom line is this, which I read somewhere and paraphrase loosely here:
Marble will stain and etch with everyday use. End of story. In other countries, people accept and appreciate this. They consider it patina. They accept the aging process. But Americans want everything to look new, all the time!
Probably true. In the end, I went with the Caeserstone because I'm lazy and just wanted something completely maintenance free. But if you love and want marble, you have to stop fretting about stains, and just do it already.
view arroyo's profile
Marble counter tops is one thing, marble EVERYTHING....harsh.
view PaintChip's profile
I used a marble porcelain tile in a recent reno and you can't tell except for grout lines.. I bought it at Southamton Brick and tile in Southampton NY. It was my compromise. I used a Schluter edge.
http://www.31islandview.com/images/416_dnna_kitchen.jpg
view parrishnut's profile
I am an American who is enjoying the slow patina of age and use leaving their mark on my carrera marble countertops. It's just stuff afterall.
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