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Old 03-01-2011, 11:09 AM   #1
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drywall mud turns yellow


Why after I have applied my drywall mud is it turning yellow? Its white originally. I have always used this product and never done it before. could moisture have anything to do with it?

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Old 03-01-2011, 03:52 PM   #2
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drywall mud turns yellow


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Why after I have applied my drywall mud is it turning yellow? Its white originally. I have always used this product and never done it before. could moisture have anything to do with it?
Is all the mud turning yellow or just the seams on the ceiling and or walls?
Is this the second floor? Under a bath?
Details would help. Pictures too.
Ron

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Old 03-02-2011, 07:09 PM   #3
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drywall mud turns yellow


Is this on new drywall or on a existing ceiling?
You should use a stain blocking primer before you paint.

-Paul
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Old 03-05-2011, 03:22 PM   #4
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drywall mud turns yellow


Sounds like a stain "bleeding" through the mud. Water, grease, even cigarette smoke residue could be the cause. As stated above, you'll need to seal with a good primer before paint. Find the water leak and repair if that' the cause.....
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Old 03-06-2011, 11:53 AM   #5
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drywall mud turns yellow


What was the reason for the mudding to start with?
I have stripped old texture off ceilings then washed them down and think they were clean. Let it dry and see they still needed cleaning like something was leaching out of the dw. Nicotine, something in the rock, salts? I really do not know. I do know it took a few wipings to get it to where I wanted it before I proceeded to prime and paint.

I would get a brownish thin gravy like goo when first washing the ceiling. I just kept rinsing until it stopped coming back.

P.S. lots of rinsing my rag/sponge.
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Old 03-06-2011, 01:03 PM   #6
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drywall mud turns yellow


Doubt it's anything leaching out of the drywall. I've seen it in kitchens (lots of frying) and in living room or den where a smoker sits in the recliner year after year watching tv. Primer should take care of it.
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Old 03-06-2011, 02:03 PM   #7
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drywall mud turns yellow


Nicotine is the first thing that crossed my mind, but it seems it would have been more noticeable before the washing. Its almost like whatever it is gets behind the texture and into the rock.

I just had to get it really clean for my own comfort before finishing.
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Old 03-06-2011, 02:05 PM   #8
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drywall mud turns yellow


Whenever I do a popcorn removal job.
I alway's prime these ceilings with oil base Kilz before painting.
9 times out of 10 the mud starts turning yellow just because the popcorn texture stains the drywall for some reason.

-Paul
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Old 03-06-2011, 02:11 PM   #9
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Whenever I do a popcorn removal job.
I alway's prime these ceilings with oil base Kilz before painting.
9 times out of 10 the mud starts turning yellow just because the popcorn texture stains the drywall for some reason.

-Paul
Normally, I used oil too for these types of jobs. I did do one out of curiousity with water based Bulls Eye (I think) after cleaning all the goo off. Came out just as good. I think that ceiling had been previously painted, but I did have to do some mudding to flatten the joints.
But, when I say clean, I mean it was clean of the goo discoloration.
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Old 03-06-2011, 02:15 PM   #10
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drywall mud turns yellow


I agree that popcorn seems to leave a "stain" after scraping, but I've never had the "goo" situation. Seems more like a grease or nicotine residue, but then again I've never tried to wash the ceiling after scraping....
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Old 03-06-2011, 02:23 PM   #11
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drywall mud turns yellow


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I agree that popcorn seems to leave a "stain" after scraping, but I've never had the "goo" situation. Seems more like a grease or nicotine residue, but then again I've never tried to wash the ceiling after scraping....
We have.
I think it's called nicotine.

-Paul

Removing popcorn from a heavy smokers condo:
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Old 03-06-2011, 02:27 PM   #12
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drywall mud turns yellow


not knowing what your mudding leaves a lot of open territory. some kind of stain probably most of these other replies are good
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Old 03-06-2011, 02:30 PM   #13
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drywall mud turns yellow


If I was betting man, I would place my bet on nicotine getting soaked in when I spray the texture with water and start scrapping it Just threw me off how it would look clean then reappear.

Now that I think about it, maybe it was nicotine that had been textured over. I mean the texture did not seem that ..nasty.

Last edited by boman47k; 03-06-2011 at 02:32 PM.
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Old 03-06-2011, 02:39 PM   #14
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drywall mud turns yellow


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If I was betting man, I would place my bet on nicotine getting soaked in when I spray the texture with water and start scrapping it Just threw me off how it would look clean then reappear.

Now that I think about it, maybe it was nicotine that had been textured over. I mean the texture did not seem that ..nasty.
I've seen a lot of stuff bleed through all kinds of mud nicotine is only 1. quick trick is to wipe or spray (with windex type bottle) with bleach soultion. the stronger the soultion the stronger the fumes.this will whiten any water based stain
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Old 03-06-2011, 04:26 PM   #15
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drywall mud turns yellow


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We have.
I think it's called nicotine.

-Paul

Removing popcorn from a heavy smokers condo:

Before:
Figured I may as well post up the after photo of that room.
After:

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