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Old 05-21-2009, 01:00 PM   #1
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Default Dish Soap to treat mold?

Hey,

I have a goofy question for you. Has anyone ever used Dawn dish soap to clean mold off of cedar siding? The HO in question says he had a chemist come and analize the mold and that is the recommended treatment. I have never heard of this. We brought some along to the job just to have it on site but plan on using Jomax before we oil prime and paint with 2 coats SW super paint.

I think he paid the chemist too much for this advice.

Here's a picture.
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Dish Soap to treat mold?-demorest-mike-013.jpg  

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Old 05-21-2009, 01:27 PM   #2
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I've never heard that before, but I'm no chemist either so take that for what its worth.

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Old 05-21-2009, 02:20 PM   #3
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I've never heard that before, but I'm no chemist either so take that for what its worth.

I'm no chemist myself. Sounds to me that all the residue and suds foaming from the soap will soak into the cedar and be a bear to clean off.

Thanks for your input.
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Old 05-21-2009, 02:45 PM   #4
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I wonder if the chemist was suggesting anti -bacterial dishsoap, which brings it back to a weak bleach solution?
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Old 05-21-2009, 04:56 PM   #5
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I'm wondering if the chemist had a stroke and couldn't remember the other two ingrediants to the time honored wash solution - chlorine bleach and TSP. In water, of course.

Or if the HO did not hear correctly.

You should get the chemist's name and check what he/she said.
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Old 05-21-2009, 05:04 PM   #6
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I wonder if the chemist was suggesting anti -bacterial dishsoap, which brings it back to a weak bleach solution?

The HO said plain ole Dawn dish soap. I get what you mean about the anti bacterial part.

Knowing the way this HO operates, I am suprised he didn't have the official chemist report to show me.

He has a lot of $$$ and who are we to argue with the experts?

At least we'll have a bottle handy for washing coffee cups at the shop.
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Old 05-21-2009, 05:08 PM   #7
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I'm wondering if the chemist had a stroke and couldn't remember the other two ingrediants to the time honored wash solution - chlorine bleach and TSP. In water, of course.

Or if the HO did not hear correctly.

You should get the chemist's name and check what he/she said.
I am pretty sure the HO heard correctly. With the way he operates he probably kept the chemist company at the lab while he was testing the mold.

I'll see what we can find out. In the mean time, we are going to treat it the way we always do with Jomax. Kinda hard to sneak that by though, with the HO on patrol in his motorized Rascal.
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Old 05-21-2009, 05:46 PM   #8
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The HO and his chemist buddy are not painters, bottom line. So, I think you're making the most intelligent decision, go with what you know will get the job done: Jomax. This will get the mold at the root and ensure longevity of the paint job. Your warranty will be better served this way instead of painting over a bunch of soapy residue.

You plan on adding bleach + H2O to the Jomax right?
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Old 05-21-2009, 06:03 PM   #9
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Dish soap will do nothing to that neglected beauty.If anything,it needs a strong mixture of bleach to water to clean the siding.
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Old 05-21-2009, 06:41 PM   #10
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That is the funkiest looking mold I have ever seen on a house. I remember reading a house cleaning recipe from one of the powerwasher websites about Dawn, bleach, and maybe TSP in with it (not sure on the TSP). I really have never used TSP much.

When every I try another house cleaner, I so far have always come back to Jomax+bleach and regret trying something different. There is that new Moldex wash that you add bleach to and the jug looks an awful lot like JoMax, but supposedly Moldex is better are killing mildew and mold on porous surfaces?????
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Old 05-21-2009, 06:58 PM   #11
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no thats standard looking mold. What is jomax though. Its soap. Bleach activator and surfactant. And who has a chemist come test their mold?
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Old 05-21-2009, 07:04 PM   #12
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We typically use Dawn,bleach,tsp
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Old 05-21-2009, 07:31 PM   #13
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Whoa, that is what I get for quickly glancing at the picture. I thought the caulk and patching was some funky mold. Nevermind me.

I looked at a job once where they had TWP as the finish on cedar like that and it was all dark, uneven and black, tannin bleed all over the place. Way over due for something to be done. They wanted it recoated but wanted it to stay looking that way ("aged").
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Old 05-21-2009, 08:21 PM   #14
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Quote:
Originally Posted by ParagonVA View Post
The HO and his chemist buddy are not painters, bottom line. So, I think you're making the most intelligent decision, go with what you know will get the job done: Jomax. This will get the mold at the root and ensure longevity of the paint job. Your warranty will be better served this way instead of painting over a bunch of soapy residue.

You plan on adding bleach + H2O to the Jomax right?
Yup, sorry I didn't include that info. Hopefully the HO won't smell the bleach when we're using it.

Thanks for the reassurance that we are doing the right thing.
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Old 05-21-2009, 08:25 PM   #15
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Quote:
Originally Posted by DeanV View Post
That is the funkiest looking mold I have ever seen on a house. I remember reading a house cleaning recipe from one of the powerwasher websites about Dawn, bleach, and maybe TSP in with it (not sure on the TSP). I really have never used TSP much.

When every I try another house cleaner, I so far have always come back to Jomax+bleach and regret trying something different. There is that new Moldex wash that you add bleach to and the jug looks an awful lot like JoMax, but supposedly Moldex is better are killing mildew and mold on porous surfaces?????
I haven't heard of the Moldex. Is that a Zinsser product? We'll have to give it a try if we can get it on the job before the HO sees.
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Old 05-21-2009, 08:28 PM   #16
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get big dawn bottles and empty them, fill with jomax and bleach
show up on jobsite with lots of dawn.
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Old 05-21-2009, 08:41 PM   #17
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no thats standard looking mold. What is jomax though. Its soap. Bleach activator and surfactant. And who has a chemist come test their mold?
This guy and his wife are a very interesting couple.

I spent 2 hours with the HO's last fall discussing the painting.

Then I spent another two hours at a restaurant drinking bad coffee with him and his wife to hear about how they wanted the job run. (been burned by other contractors I guess)

Then I rode with them to look at exterior paint colors around the area for another couple of hours. Only to have them decide the house they have was too contemporary in style and so could I please give them some help on ways to change it.

Then I spent 4 hours coming up with a design plan for the exterior including sketches, color board, lighting etc...(I went to school for interior design, sorry)

Then he wants to beat me up on price for painting a 18 foot RV port. (I was $200 higher than the other painters bid but my numbers were lower on the house, deck and gazebo)

It was very tempting to walk away but he owns a large property mgmt company and we could get a lot more work from him if we can just get through this job.

If only the economy was better...
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Old 05-21-2009, 08:45 PM   #18
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get big dawn bottles and empty them, fill with jomax and bleach
show up on jobsite with lots of dawn.
That's the plan. I kinda like these covert operations.

Hope we don't get caught, seriously.
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Old 05-21-2009, 08:47 PM   #19
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You need one of these!
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Old 05-21-2009, 08:51 PM   #20
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Stick with what you know works.

Washing for a Chemist

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