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-   -   White dusty film on bedroom walls (http://www.diychatroom.com/f4/white-dusty-film-bedroom-walls-119813/)

elmore04 10-11-2011 02:56 PM

White dusty film on bedroom walls
 
What causes a white dusty film on my bedroom walls and how can I get rid of it?

DrHicks 10-11-2011 03:59 PM

This may be a stupid question, but has there been any drywall work done in your house in recent months?

elmore04 10-11-2011 06:37 PM

Quote:

Originally Posted by DrHicks (Post 746663)
This may be a stupid question, but has there been any drywall work done in your house in recent months?


No there hasn't.

1910NE 10-11-2011 06:39 PM

If it where spring, I would say pollen. Where are you located?

jsheridan 10-11-2011 08:21 PM

White mold?

chrisn 10-12-2011 04:50 AM

Pic needed

jules4 10-14-2011 08:17 PM

Maybe they were painted using exterior paint and it's chalking?

chrisn 10-15-2011 03:12 AM

Quote:

Originally Posted by jules4 (Post 748978)
Maybe they were painted using exterior paint and it's chalking?

Now, there is a thought.:thumbsup:

jsheridan 10-15-2011 05:25 AM

Question: Why would exterior paint chalk when used interior?

boman47k 10-15-2011 08:55 AM

Quote:

Originally Posted by jsheridan (Post 749122)
Question: Why would exterior paint chalk when used interior?

Kind of made me cock my head when I read this. Reason being, I admit I painted my bthrm a few years ago with exterior paint. No chalking that I am aware of.
I say 'that I am aware of', because I have noticed what looked like some sort of stain trying to run on the walls. Wife said it was dirty walls, but I have never noticed this before. Could it be that it was actually a chalky substance reacting to moisture in the bthrm?

Btw, op? What are your walls made of? Drywall? Plaster? Block? What kind of paint is on them now?

jsheridan 10-15-2011 09:10 AM

Boman, that stain is surfactant leaching from the paint, it's caused by steam. It's brownish. Wipes right off with water.

jules4 10-15-2011 03:36 PM

Quote:

Originally Posted by jsheridan (Post 749122)
Question: Why would exterior paint chalk when used interior?

Okay, so that's pretty unlikely . . . there are some (not entirely outlandish) situations in which it might happen:

Lots of old windows (non-low-E)

Low quality, highly-pigmented paint - just being exposed to the air would probably result in enough oxidation to break down the binders.

Add occasional washing of the bedroom walls to either of the above conditions and I could see it happening.

chrisn 10-15-2011 04:36 PM

Quote:

Originally Posted by jsheridan (Post 749122)
Question: Why would exterior paint chalk when used interior?

Mildewicide leaching out:eek:. Hell, I don't know, it sounded good at 4 this morning before my coffee.

Maybe a bag of flour ( or some OTHER white powdered substance) exploded:laughing:

sksadlock 08-04-2012 09:09 PM

I am having the same problem that started about when you posted this...just curious..what kind of paint did you use and color? We were trying to figure it out tonight ...if it was the batch of paint that we got...because not happening in other rooms that were painted at different times!

user1007 08-04-2012 11:14 PM

Oil paints will chalk. See the current posts about how lindseed oil paints will. Alkyds should not be so bad. Acrylics should not chalk.


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