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Unread 03-25-2018, 08:44 PM   #16
Gozo
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I used Concrobium to kill mold on some framing members. It says it works on non porous surfaces as well. Have you tested a small out of the way section with a pressure washer (lower pressure wider pattern head first)? Sometimes you kill the mold, but the color of the stain remains.
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Unread 04-06-2018, 09:09 AM   #17
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Marble poultice to pull it out of the stone
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Unread 04-06-2018, 02:33 PM   #18
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Smile The Answer to Your Dirty Stone

*the answer
Call Carl at Klenztone. 1.800.331.1696 Their products are amazing, not acidic and they have travertine specific klenztone you would let dwell on the stone for a bit.
Then a pressure washer with the $80 surface attachment spinner from Home depot (EZClean 15") which rocks and cleans under and around everything without getting you all wet and everything mucky around from splatter and have someone with a wet vac with squeegee wand right behind so dirt doesn't redeposit into the cracks.
Klenztone + Surface Condition EZ Clean Attachment + Wet Vac with Squeegee Wand = beautiful stone
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Unread 04-06-2018, 02:47 PM   #19
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More info on Klenztone

My personal experience with this product is product is amazing and company is amazing. They will shoot you out a sample of what you need and have the best grout cleaner in the world that isn't listed on their website but seriously makes bone bone again without a regrout.
I dont work for them, but think the stuff is awesome WARNING,-use the right # for the surface you are working on or it might etch the stone. They have a formula for every surface but I've tried to pull a renegade stone cowboy on stone with the wrong Klenztone and jacked up the surface.
Here's a copy paste and once again I dont work for these guys, just love good chems.

Also including picture of attachment from Home depot everyone needs if they have a pressure washer. $70, not 80.

The KLENZTONE surface cleaner, approach to cleaning surface is to penetrate into the pores and release the dirt from the surface so it can be rinsed off. It cleans where others fail and ensures the original surface can be easily maintained.


Features & Advantages

KLENZTONE surface cleaner does not contain Hydrochloric acid , Hydrofluoric acid , Sodium Hydroxide or any other corrosive acids and alkalies.Water base, Non-hazardous , Non-flammable and effective.Release no V.O.C.Can be left to dry on stone surfaces – The stone or pointing will in no way get hurt or harmed even if KLENZTONE is left on the stone surface to dry for months before rinsing.Only*surface cleaning product that has no contact time specification in the world.Preserves surfaces by removing impurities from pores of the stone.Safe for the environment – KLENZTONE is readily BIODEGRADABLE.Ideal cleaning solution prior to weatherproofing procedure.Property is protected, not destroyed.Restoration principles are observed.


ProductsSurfaceUsual Application Areas
Klenztone 1Limestone , Sandstone ,Concrete Expose Aggregate , Rough MarbleExterior
Klenztone 2Unpolished Granite and Marble Field Stone , Stucco , FirebrickExterior
Klenztone 3Terrazzo , Marble and Travertine FloorsExteriorKlenztone 4Brick , Polished Stone , Granite Floors , Baked Enamel Flagstone , Glazed Terra Cotta , Unglazed Ceramic TileExterior and Interior
Klenztone Safe EtchRemoves Laitance & Prepares Concrete surface for overlayesExterior and Interior
Klenztone C.S.PPreparing Concrete/ Stone surfaces for application of coatings or adhesives , To clean efflorescence , Tile Grout JointsExterior and InteriorKlenztone SuperbClean woodwork , Vinyl tile floors , Marble/Granite floors Ceramic tile floors , Oils motorsExterior and Interior
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Unread 04-07-2018, 08:35 AM   #20
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Travertine, a "marble-like stone," is never a good idea for a pool deck. To compound it, yours is un-filled. I've never seen that done.

Power washing will certainly help in the short term. I think eventually, though, somebody will remove the travertine and go to something else.
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Unread 04-07-2018, 02:18 PM   #21
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I agree with Kati-just to add-
Klenzstone is a great product-it is acidic however so use proper precautions and read the sds.
The first thing I would do is take a moisture reading of the surface. I dont see any signs of a moisture issue but it wont hurt to take a reading.
I would test (50 sf) a combination of a floor machine and extractor first using a dilution of sodium percarbonate and a detergent scrubbed with a nylo grit(180g) brush. Based on the results of the test I might incorporate klenzstone #3 if the surface needed it. While the holes can be filled it will take someone experienced to do a proper job.
My best best advice is to have a stone re-finisher have a look at it.
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Unread 04-14-2018, 07:25 AM   #22
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Possible solutions

Could hydrogen peroxide be used? I would first off trying pressure washing.
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Unread 04-14-2018, 02:04 PM   #23
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Mold needs water+air+food to live. Take away any one of those and the mold will die on its own.

Drying out the area is usually the easiest. Cutting trees and promoting air flow will dry out the area, esp if the Texas sun is beating on the stones.

Keeping the stones clean from landscape debris will lessen the amount of organic material for the mold to feed on.

The chlorine from the splashed pool water isn't going to make much of a dent. In trace amounts, it promotes plant growth.
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Unread 07-17-2018, 11:36 AM   #24
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Looking for quality sanded caulk...

Hello to all,

The install below is in our backyard where the grout is missing btw the Austin Stone columns and the tumbled travertine floor. This was completed in Nov of 2014.

Willing to remove the remaining material if required to provide a uniform look based on what is used to fill the gaps.

The third pic is a close up for the grout in general. I also need to fill in some other others where the grout has broken or separated at the top.

Looking for something that is flexible, durable, outdoor rated and isn't a bear to install and comes in diff colors to match. If you have any questions, pls let me know Thank you
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Unread 07-17-2018, 11:59 AM   #25
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Tom, you'll want to use 100% silicone since it's outside. The latex acrylic caulk just won't hold up.

I usually buy through GroutGetter.com. They have pretty much every manufacturer and every color.
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Unread 07-17-2018, 12:06 PM   #26
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Well, all caulk is "quality," Tom. I'm guessing you're looking for a good quality product rather than a low quality one?

Best source I know of for sanded 100 percent silicone sealant is ColorRite. I suppose you could send them a sample of your mortar and get a custom match (likely for much more dinero), but easier would be for you to find a tile grout color to match and just send them the grout manufacturer and color name.

That said, your application is a place where I would leave the gap void of any mortar or sealant at all. Or at least leave some openings for water drainage if you just can't live with the sight of the open joint.

[Edit] Or what place fast-finger Kevin recommended. I've not heard of those folks.

My opinion; worth price charged.
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Unread 07-17-2018, 12:47 PM   #27
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Kevin and CX, thank you.

Are the products you are recommending, do they contain caulk/silicone and grout mixture? I'm looking for something that you would install from a caulk gun, but also have the appearance of a grit or grout look, to an extent. Point taken on the breakdown of regular caulk.

As far as drainage CX, the heavy rains are fewer than expected and we receive a lot of sun in this area, even in the winter since it faces the south horizon.

Thanks again, tom
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Unread 07-17-2018, 02:24 PM   #28
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Look at the link I posted, Tom. I believe the ColorSil product comes in standard 10oz caulking gun tubes.
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Unread 03-31-2019, 12:31 PM   #29
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filling in cracks and natural travertine depressions

Hello to all,

Have about 1300sqft of outdoor tumbled travertine. Installed in 9/2014 and needed to have the black mold removed..used wet&forget, then power washed.

The polymetric grout that was moldy was blown out and now I need to refill these areas along w the natural holes from where 2-4 corners meet [see pics 1-3, pic 4 is a perspective pic]

Was going to use polymetric sand to fill cracks and corner holes.

Questions: '

1. what type of polymetric sand [brand, specs, etc] would you recommend. I've watched some youtubes on how to apply...

2. If not p-metric sand, is there something else you would recommend?

3. Finally. what is recommended to fill some of the holes in the travertine pavers...looks like some kind of beige polymer was used. Pls let me know if you have any questions.

Thank you very much, tstex
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Unread 03-31-2019, 02:30 PM   #30
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Welcome back, Tom.

Looks like we've combined a number of threads on this project over the years so I've combined your new thread there, too.

Why would you not use the same polymetric material you used previously?
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