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Post Info TOPIC: Black stains on stone face in front of home.


Approved Exterior Cleaner

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Black stains on stone face in front of home.
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 .Went out to give estimate just to clean the stone on the front. The bleach I used might have been weak. Nothing happened after applying ot straight with a brush. Then adsded Gutter cleaner. Nothing. Then also added The Right Stuff degreaser I had laying around & some Sodium Hydroxide. No good. Any ideas. I am going to pump out some fresh SH and test it again.

 

Couldn't attach pics. Kept saying..."Your comment is too long. Please shorten it"

 

 

 

 



-- Edited by Pinky on Friday 18th of June 2021 01:33:15 PM



-- Edited by Pinky on Friday 18th of June 2021 01:34:02 PM

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Elephant Roof & Exterior Cleaning

https://www.elephantexteriorcleaning.com/

Ft. Worth Texas

David Hoover

682-999-4600



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I used FastStone Photo Resizer and went to 10% and it still is to big. WTF!


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Elephant Roof & Exterior Cleaning

https://www.elephantexteriorcleaning.com/

Ft. Worth Texas

David Hoover

682-999-4600



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Yea,..would be nice to see the pictures! I love evaluating mystery stains, Ha, Ha,..Something to try in the meantime is an aluminum brightener with Hydrofluoric Acid. Small test spot obviously,..but often time stone can be cleaned with it. If it's not mold,..which considering your bleach test it isn't,.....it's likely atmospheric???

Did direct high PSI do anything,..or didn't you try that?

Sometimes stone just ages funny and it is what it is? Sounds like this can be cleaned though.

PICTURES! PICTUTRES! PICTURES! Ha, Ha,....

Jeff

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Raystown Pressure Washing

Since 1996



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I've try to do some sandstone several times where the black mold is so embedded nothing gets it out.

think I poured straight 12% and pushed it around to dwell and got some but not all out

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Maverick Contracting

Long Island, N.Y.



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I think something is screwed up, I will look into it later

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1534045 (500×500)



Approved Exterior Cleaner

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Pinky wrote:

 .Went out to give estimate just to clean the stone on the front. The bleach I used might have been weak. Nothing happened after applying ot straight with a brush. Then adsded Gutter cleaner. Nothing. Then also added The Right Stuff degreaser I had laying around & some Sodium Hydroxide. No good. Any ideas. I am going to pump out some fresh SH and test it again.

 

Couldn't attach pics. Kept saying..."Your comment is too long. Please shorten it"

 Try now Pinky, Grab the corners of the pic and shrink it in

 

 

 



-- Edited by Pinky on Friday 18th of June 2021 01:33:15 PM



-- Edited by Pinky on Friday 18th of June 2021 01:34:02 PM


 



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Art O wrote:  Its working

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Pinky what was the end result

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He might have been looking for instant FB answers!

David, send me the pictures, I'll see if I can post them!



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Brett Thompson

Blue Ridge Exterior Cleaning

BlueRidgeExteriorCleaning.com

434-466-1324    540-949-6277

brett@BlueRidgeExteriorCleaning.com



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How about an update?

Jeff

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Raystown Pressure Washing

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