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Sam Waterston 
LSU Fan
Baton Rouge
Member since Sep 2008
1748 posts
| How to kill mold on porous surfaces (Posted on 7/15/10 at 1:28 pm)
and no, bleach didn't work.
I googled it and have not come across too much helpful information. I was just wondering if any experts on here have had this problem before and what they used to remedy it?
TIA
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Bussemer
LSU Fan
Heading South
Member since Dec 2007
2183 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:29 pm to Sam Waterston)
Jo Max, maybe?
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Sam Waterston
LSU Fan
Baton Rouge
Member since Sep 2008
1748 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:31 pm to Bussemer)
just looked it up, only non-porous surfaces, thanks though. I'll probably try it anyway
This post was edited on 7/15 at 1:32 pm
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CptBengal 
USA Fan
BR Baby
Member since Dec 2007
30715 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:31 pm to Sam Waterston)
quote:
and no, bleach didn't work.
Gotta dry it out after each bleaching.
Repeat SEVERAL TIMES.
Then keep the area as dry as possible.
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Gaston
LSU Fan
Dirty Coast
Member since Aug 2008
16428 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:32 pm to Sam Waterston)
What porous surface? Muriatic acid will kill most anything, including your porous surface if you're not careful. You can get it a Lowes.
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lsualec78
LSU Fan
alexandria
Member since May 2008
1363 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:32 pm to Sam Waterston)
Try Muriatic Acid. Smaller molecule than bleach (HCl). Get some at any swimming pool supply store.
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Sam Waterston
LSU Fan
Baton Rouge
Member since Sep 2008
1748 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:32 pm to CptBengal)
quote:
Then keep the area as dry as possible
that's my problem, it is in my lone bathroom
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Rouge
USA Fan
Member since Oct 2004
86211 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:32 pm to Gaston)
quote:
Muriatic acid
some bad shit, and can create quite a toxic odor
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HeadSlash 
Army Fan
TEAM LIVE BADASS
Member since Aug 2006
27314 posts
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| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:33 pm to Sam Waterston)
What is the surface in question?
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lsualec78
LSU Fan
alexandria
Member since May 2008
1363 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:33 pm to Rouge)
quote:
and can create quite a toxic odor
because tards mix it with bleach
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Sam Waterston
LSU Fan
Baton Rouge
Member since Sep 2008
1748 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:34 pm to Gaston)
quote:
What porous surface?
sheet rock/drywall, I'll look into the muriatic acid
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SG_Geaux
USA Fan
Googolplex Posts
Member since Aug 2004
42300 posts
Online
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:36 pm to Rouge)
quote:
Muriatic acid
some bad shit, and can create quite a toxic odor
Yeah, I would not be using that shite inside.
Maybe you should just call Pepe at Re-bath
This post was edited on 7/15 at 1:37 pm
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Sam Waterston
LSU Fan
Baton Rouge
Member since Sep 2008
1748 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:37 pm to SG_Geaux)
quote:
Yeah, I would not be using that shite inside
duly noted
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wickowick
LSU Fan
Head of Island
Member since Dec 2006
12910 posts
Online
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 1:39 pm to Sam Waterston)
The only was to get it off the drywall is to cut it out.
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Bleeding purple 
TCU Fan
Athens, Texas
Member since Sep 2007
16557 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:03 pm to wickowick)
quote:
The only was to get it off the drywall is to cut it out.
this is the correct answer then replace with green rock. certainly more labor thatn you were looking for but if the backside of the drywall (brown paper backing) is molded and wet, which I assure you it is, then this is the only option.
If the molded wall has insulation in it you will need to remove it too. The studs if molded and wet should come out but can remain if you cn sufficently dry them out before reinstallng new drywall and moisture barrier.
for a temporary bathroom I reccomend a 5 gallon bucket, two 12" pieces of 2x4, a roll of TP, and a can of OFF. Man up, your in for some work.
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W
LSU Fan
Baton Rouge
Member since Nov 2007
4805 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:08 pm to Sam Waterston)
Need pics of contamination for a better consult, although wickowick and bleeding purple have given correct advice.
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blueTunaTiger
LSU Fan
Gulf of Mexico, USA
Member since Feb 2009
3696 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:38 pm to Sam Waterston)
Sorry, but to easy solution. These were the code specifications we are required to follow with any sustained water damage repair with evidence of mold:
1) follow posters advice and remove wet rock. Depending on the cause, replace with either moisture resistant rock or a cementous board (HardiBoard or similar). If cause of moisture is overspray from shower or leaking faucet / shower pan, recommend HardiBoard.
2). After removing rock and insulation, treat raw wood and related areas with a mold abatement spray, such as "ShockWave". Any commercial paint store should have it. Bleach/JoMax/Others will not kill most molds, just cleans the surface.
3). Encapsulate the cells with some sort of oil based coating. It sounds like you are going to always be fighting a humidity problem in this bath, and unless you are able to keep humidity levels below 30% for a continuous 5 day cycle, spores may reappear. The less cells holding moisture, the less likely future growth.
4) before painting, coat with a moisture barrier similar to that used as a pre- treatment for tile/stone.
There are a few web sites relating to water damage that have this procedure outlined. When I get back to the office this evening, I'll forwRd the link.
Good Luck
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Wildcat 
Kentucky Fan
Kentucky
Member since Sep 2007
5771 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:41 pm to Sam Waterston)
LINK
Here ya go brah...
It will work 100%
It's a fungicide called Shockwave 
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sonusfaber
LSU Fan
Baton Rouge
Member since Apr 2010
2221 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:46 pm to Sam Waterston)
quote:
and no, bleach didn't work.
Never use bleach. It has more water in it than the other stuff that kills the mold. The water promotes the growth of more bleach. Use 409; works for me.
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Bleeding purple
TCU Fan
Athens, Texas
Member since Sep 2007
16557 posts
| re: How to kill mold on porous surfaces (Posted on 7/15/10 at 2:53 pm to blueTunaTiger)
quote:
HardiBoard
good advice
quote:
"ShockWave".
only option if you cant dry it.
quote:
before painting, coat with a moisture barrier similar to that used as a pre- treatment for tile/stone.
Kilz oil based works well here too and will allow latex over coat should you desire.
quote:
It sounds like you are going to always be fighting a humidity problem in this bath,
Add an attic ven in the bahroom and turn it on when you take a shower or bath to reduce the humidity in the room. Also if there is no A/C vent or distribution to the bathroom you may want to add one.
when you finally pain the dry wall or hardiboard of the final coat use a semigloss for durability.
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