They will have more problems with coating lifting off the surface and
turning white. The coating will not stop the mold and mildew.
You can seal with an impregnating sealer and then can once a month mix
bleach and water 30% solution of bleach to the water and spray down on the
stone allow to dwell for 10 minutes, then rinse off with a hose. This will
keep the mold and mildew off the surface.
The fact that the stone is sealed with an impregnator the water will dry off
the surface faster thus reducing the mold and mildew.

John E Freitag
Director
The Stone & Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com

www.thestoneandtileschool.com

-----Original Message-----
From: list-manager@stoneandtilepros.simplelists.com
[mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of Perfect
Marble 2
Sent: Thursday, August 07, 2014 6:19 PM
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Re: Installing of red travertine

Thanks John but client is hell bent on topical and believes this avoids mold

Sent by iPhone
Dayron Padilla
Perfect Marble

> On Aug 7, 2014, at 5:34 PM, "John Freitag"
<jfreitag@thestoneandtileschool.com> wrote:
>
> Dayron,
>
> From the pictures the job look very poor to say the least. Pressure
washing
> is my recommended way to clean stone. If you elect to clean I would
> recommend only using 900 PSI for the cleaning. Topical finishes on a
> exterior deck is asking for problems. The topical coating can and will
> probably cause the surface to be slippery and trap the moisture in the
stone
> not allowing the stone to breath.
> Recommend stripping off the topical, do a good ddep clean with a alkaline
> based cleaner then seal with an Impregnating / penetrating Sealer.
>
>
> John E Freitag
> Director
> The Stone & Tile School
> Office 407-567-7652
> Cell 407-615-0134
> jfreitag@thestoneandtileschool.com
>
>
>
> www.thestoneandtileschool.com
>
>
>
> -----Original Message-----
> From: list-manager@stoneandtilepros.simplelists.com
> [mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of Dayron
> Sent: Thursday, August 07, 2014 12:55 PM
> To: Stone and Tile PROS Technical Support
> Subject: Installing of red travertine
>
> Hey gang saw a potential client today with an outside deck of red
> travertine. She had had numerous workers try to (topical) seal it and did
a
> horrible job.  I'm no installer but she said they pressure washed and thru
> sand for grout joints.   Is this the correct way to do this.
>
>
> Visit list archives, subscribe, unsubscribe or change your subscription
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>
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