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Unread 07-28-2008, 08:15 PM   #1
pitterpat
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Removing "hard water" stains from marble

Was asked to take a look at some marble that had some "scratches" on it to see if they could be removed. Went to look, it is at a Dr.'s office, they used to have a aquarium (sp) in the spot. This is marble that has a purple and gray color/tone to it (sorry for the bad pictures, I've broken 2 camera's in 12 months, had to use cellphone again). I told the lady that these were probably hard water spots from filing, cleaning and so with the aquarium. She also asked about replacing some cracked marble tiles. I told her that if the tiles are 15 yrs or so or older they are definitely not available. so she also asked about polishing or buffing the marble so that it looks better and the cracked tiles may not be as noticeable (ha).

Any way, here are the pictures of the hard water spot. 1. What might I be able to use that will take this out (product and equip. needed). 2. Is there a marble polish or enhancer that I could use to shine this floor uP, about 115 sf.

Again sorry for the dull pics.

Pat
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Last edited by pitterpat; 07-28-2008 at 08:54 PM.
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Unread 07-28-2008, 08:53 PM   #2
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Pitter,
I'm wunderin if something automotive could help like a fine grit 3M compound and a wool bonnet... Jest thinkin outloud.. Need to test it out though. Got a variable speed buffer? or is it etched in the rock?
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Unread 07-28-2008, 09:07 PM   #3
pitterpat
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Frank,

It seems like it is in the rock, but the lady that showed it to me said she used something on it 6 mos. ago and it took a little of it up. But she couldn't remember what she used.

BTW this is at a Colon Dr's office.....new tile is not in the budget this year....guess the a$$- holes aren't as bad this year.

Pat
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Unread 07-29-2008, 05:36 AM   #4
doitright
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Hi Pat

If the shine is gone (at the outlined area), the stone will minimally need to be polished with a marble polishing compound (contains aluminum oxide and oxalic acid. The cracked tiles can possibly be repaired with a tinted polyester or CA. TEST first!

To polish the entire area you'll need a rotary buffer, hogs hair (natural pads), and marble polishing compound. It won't get the heavy scratches out though.

Taking on a project like this with no experience is like swimming in shark infested waters.
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Unread 07-29-2008, 06:05 AM   #5
pitterpat
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Taking on a project like this with no experience is like swimming in shark infested waters.
Yeah John I know, I don't think I really want to do that! That place has this deep maroon carpet that frames it along the side. I think I'll find a marble restoration co.

Thanks, Pat
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Unread 07-29-2008, 06:13 AM   #6
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Hi Pat! How are you? Missed you at Coverings this year

Anyway - the good doctor is going to need to have his floor reground and repolished if he wants to get rid of those marks. They are etches from whatever products they used on their aquarium. (Was it a regular one or a salt water tank? Just curious)

It also looks like he has some lippage and some seriously dingy grout going on.

If he has some cracks that need attention too, the best thing for him to do would be to get a stone restoration guy with the required equipment in there. Those etch marks will have to be removed mechanically. There are no bottled products that will remove them. It might be the stuff she put on there temporarily darkened the marks, making her think she removed them.

This is just my 0.02
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Unread 07-29-2008, 05:09 PM   #7
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Thanks Granite Girl...I missed Coverings too! The next 2 years 4 sure.

Thanks for the info. I'll talk to the m about it. Thanks, Pat
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