Drywall Mud Gone BAD???

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Topic by ChefHDAN posted 09-11-2010 02:59 PM 48800 views 0 times favorited 14 replies Add to Favorites Watch
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6 posts in 4151 days

09-11-2010 02:59 PM

Topic tags/keywords: question

First, I’m a cheapskate & I know it, feel free to pile on in that accord.

I’ve got a 40# bucket of mud left over from finishing out the basment two years ago. I had added some water to lighten the mud for my final coating which I think might have led to my current situation. The mud smells like river mud, low tide or the last porta-potty you might have been forced to visit, it has separated a bit with the liquid, (Water?) on top which I’ve poured off. I’ve used the mud several times recently for small patching etc, wall prep pre-painting and have not had any failures from the product in the regard of filling holes smoothing seams yadda yadda.

My question is though, as I’ve just patched all the dings and drywall gifts from my three children in the central hallway, should I be using this, does it present a health danger, mold gassing or whatever???

I’d appreciate any shared knowledge and will also weigh qualified opinions, Many Thanks!

View UnionLabel's profile


70 posts in 4399 days

09-11-2010 09:00 PM

You had better buy new. That stuff has an actual shelf life of about 3 months after it is opened. What you are smelling is what is known as an anaerobic(no Oxygen) bacterial growth. This process breaks down the ability of the compound to maintain its holding power. You may not have problems now, but down the road you may, plus ad you yourself have stated I wouldn’t think it is healthy for anybody to be around.

-- Methods are many,Principles are few.Methods change often,Principles never do.

View terry1769's profile


4 posts in 4150 days

09-12-2010 04:19 PM

I had to toss a bucket recently. It was just over a year old and was very obviously molded when I re-opened it. If there’s any unpleasant smell I’d definitely get rid of it as mold, visible or not, is becoming quite the known health hazard.

View PaBull's profile


694 posts in 4989 days

09-13-2010 10:39 PM

Next time buy the powder form, this is nice for small patches. And when you are in a hurry, you can also get the quick dry stuff (forgot the name).

View Berg's profile


6 posts in 4148 days

09-14-2010 11:49 AM

Ready mix is $10-$12 for a 5gal pail. Toss it.
PaBull, it’s Durabond. It “sets up” like plaster. I use this if I want to get a couple of coats on the same day. It’s harder than ready mix when set up also so don’t lather it on and plan to sand it down much. Usually I do two coats of Durabond and finish with ready mix. You will see Durabond 30 / 45 / 90. That is the approximate set time.


View PaBull's profile


694 posts in 4989 days

09-14-2010 07:28 PM

Thanks Berg, at least somebody knows whats going on around here.

View ChefHDAN's profile


6 posts in 4151 days

09-17-2010 05:41 PM

Thanks to all for the advice & input.

I picked up a bag of the Durabond this morning & it’s totally different to work with than the ready mix, first coat is drying now, it worked reall smooth & met my needs perfectly ~ Thanks!

View Berg's profile


6 posts in 4148 days

09-18-2010 01:44 PM

Ah, my work here is done. ;)

View ChefHDAN's profile


6 posts in 4151 days

09-18-2010 04:01 PM

Not quite, whadda ya know about concrete??? See my patio post and help if you can

View Berg's profile


6 posts in 4148 days

09-19-2010 03:39 PM

The things I know about concrete:
1. It’s hard.
2. It’s heavy.
3. ummm…. it’s hard.

HTH ;)

View mofo83's profile


1 post in 4103 days

10-29-2010 05:15 PM

Speaking of smelly mud… I need some advice.

We just had a company come in and remove popcorn texture throughout our house, repair and re-mud the underlying drywall, and paint. The results looked really good, but now we’ve noticed a pungent smell (like puke) throughout the house. At first, I thought it was the paint somehow, but It’s been about two weeks and it still smells in there.

Is this normal… or is it caused by ‘moldy’ mud, like you mentioned above? If so… what should we do?

I don’t want to have a smelly house forever, or problems with the drywall down the road. We’re going to try and open every window and door this weekend, all day, to see if that helps, as the house has been closed up since the work was done.


View ALLY718's profile


1 post in 3915 days

05-05-2011 04:17 AM

Our contractor has used bad drywall mud, from the previous posts that is what I think it is. It smells like a porta pott (urine). Will the smell go away or should I have it removed. This is in a clean place of business and the smell is not bearable.

View ChefHDAN's profile


6 posts in 4151 days

05-05-2011 03:23 PM

First you need to identify exactly what product was used. If you’re using a contractor with a reasonable amount of business, I doubt they’re keeping a bucket of mud around long enough to have it go anerobic. From the suggestions I received from my initial post I switched to the Durabond product which does have a different somewhat acidic odor. The odor however abates rather quickly and should not remain in a ventillated space. Please note, I have not done any large scale work with the durabond, but the odor fro patching several dings down my main hallway is gone in an hour or two. Have you made your final payment to your contractor? What has your contractor said about the smell? How much have you observed the crew, it might not be the mud but a lazy helper that “left a present”

View allmyfingers's profile


31 posts in 3982 days

05-08-2011 09:52 PM

no experience with smelly mud as we toss moldy mud if we ever get any. you mentioned drywall repairs, could paper mold be a problem? did the contractor use primer? that smells sometimes.

-- caring costs nothing

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