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Unread 08-24-2006, 01:20 PM   #1
Buck
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Polished trav with "water marks"

I have just finished installing crema marfil travertine on a bath floor. When light reflects of the stone at an angle some of the tiles have what appear to be water marks. I have tried to remove them with stone techs stone cleaner and also reapplied a tile lab surfaceguard penetrating sealer and wiped it off immediately. I had sealed the tile with this sealer before installation. Neither of these approaches did much to help. The tiles were installed with custom building products marble and limestone medium set mud and grouted with custom building products unsanded grout in 1/16" grout lines. Can I do anything to fix this problem. Thanks.

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Unread 08-24-2006, 02:17 PM   #2
Stonehenge
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Hi Buck,

Crema Marfil actually is a compact limestone and travertine is a travertine.
That being said you may have geodesic voids that were filled at the factory or a different mineral configuration or chemical damage.

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Unread 08-24-2006, 02:38 PM   #3
Buck
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Hi Michael

They are definitely not voids, but a water mark looking rings that doesn't have any relief, i.e., you can't feel them by rubbing your finger across. They range from dime to quarter size. It almost looks as though some mud sat on long enough to stain it, however, I did seal before installation and tried to get the mud off right away. In any case, do you or others think I can remove them? Also, it occurs on just 2 or 3 tiles, not the entire room.
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Unread 08-24-2006, 02:43 PM   #4
doitright
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Hi Buck, Welcome!

Are these spots dull, when you look at them in the light from an oblique angle?
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Unread 08-24-2006, 02:49 PM   #5
Buck
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Hi John

The ring is dull. The interior is normal. They occur over the natural pattern of the stone. They are not part of the fossil pattern or veins in the stone.
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Unread 08-24-2006, 03:17 PM   #6
Stonehenge
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Hi Buck,

If what you observed are ring marks then you may have chemical damage caused by setting a bottle of something atop your natural stone.

If you have the capacity to post pictures then please do.

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Unread 08-24-2006, 06:41 PM   #7
Steven Hauser
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Hi Buck,

You have two approaches.

1) Use a razor blade at a 22.5 degree angle and see if the film will scrape off. Carefully going from 22.5 to 45 degrees in all directions.

2) reapply the impregnating sealer and let dwell for 2-4 minutes and then wipe off completely.

If this doesn't help then I agree with Michael, you probably have an etch that would need to be repolished.

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Unread 08-24-2006, 07:51 PM   #8
jvcstone
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Did you set your coke can on the tile while you were setting it??? that could make a ring like you describe. Be aware that your polished limestone will be suseptable to all sorts of acid etches.

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Unread 08-24-2006, 08:18 PM   #9
doitright
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Quote:
Originally Posted by Buck
They range from dime to quarter size. In any case, do you or others think I can remove them?
Hi John

Small coke can, huh?

Hi Buck

Since you can't feel them, I would try some Aqua Mix Renue on them.
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Unread 08-25-2006, 06:58 AM   #10
Buck
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Thanks for your help-One last thought

After sleeping on this issue for a night, I think I know what caused these marks. It was very hot on the days that I mudded the tile, and I was sweating profusely. These may be sweat drops that I didn't see to wipe up as there were also some water drops from cleaning off mud on some tiles. If sweat is acidic it may somehow found its way past the sealer. Incidentally, nothing other than water, mud, sealer, and sweat touched these tiles: no drinks. I have a cut waste piece with some of these marks that I will use to experiment. Thanks again.
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Unread 08-25-2006, 11:04 AM   #11
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Hi Buck

Let us know how it comes out.
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Unread 08-25-2006, 02:10 PM   #12
MasterGranite
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Crema Marfil is Marble and will etch with any and all acids and other stuff like most cleaning chemicals. Be sure to use a cleaner that is appropriote for Marble and Limestone. Marble is related to Limestone in that it started as sedimentary rock. However the Limestone was put under pressure and high temperature in the earths crust and molten rock was created. This molten rock chrystalized durring the cooling process. The new rock that formed was marble. So they are related but they are not the same stone. Marble is usually harder and much more dense than limestone. It could be that a few tiles actually were marked prior to installation somewhere. I've not seen a polished finish get etched by sweat, beer and lemmon yes (mixed together) but not sweat. Think neutral cleaner. Here's the real question tho. The spots are not very visible I bet, and since the tile is on the floor, it won't take long before there are other marks on the tile and the original ones will just blend in. Oh and be real careful of the cleaners you use, not just on the floor but other places in the bathroom!! If SOMEONE spills some, ain't nothin gonna stop the etch sans a plastic drop cloth. Oh and hey ya better watch your step getting outta the shower... polished marble is very VERY slippery when wet.
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Unread 08-26-2006, 07:05 PM   #13
claycarson
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Almost certainly they are acid etches from a bottle.

Sealer would not be able to prevent this.

Good news is, this is routine with marbles and travertines. It can likely be polished out.

On the sample piece, etch it with some lite dilution of vinegar and water, then compare. Try to polish with paste first, maybe all that's needed.
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Unread 08-27-2006, 07:29 AM   #14
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If the tiles etched with sweat, imagine what it would do with shampoo, toilet cleaner, urine, perfume or any other product found in a bathroom.

My advice to you/homeowner would be to have the tiles honed and enhanced to alleviate this problem in future. Polished limestone as a rule is not a good choice for a bathroom. (and this is now besides the fact that most folks here like to call it "Crema Landfill")
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