I painted a large room with Behr Premium interior eggshell paint a few
months ago. I didn't like the sheen of the eggshell, so I threw a coat of
flat on top and it looked much better.
After about 2 months there are now light areas forming that look extremely
flat (no sheen) and there are noticeable drool lines coming down from them
with little droplets of goo at the end. What's going on??
The weird part is, it's only doing this on one wall. The rest of the room
Lastly, a few notes: All walls had flat builder's paint before I painted.
The walls were clean. The wall with the spots has not been exposed to
anything different than the other walls. There have not been any patches
made to the wall.
It was primed first, and all layers were latex. Probably a good 4-5 coats
on there (went from white to a dark burgundy).
It's an outside wall, but one that is somewhat insulated with a small attic
next to it. This is also in Texas, so I wouldn't think being cold would be
the problem. Then again, I have no idea so I'll consider that!
The goo is almost like resin, but is clear and slightly white where it makes
a bead at the end of each run. It's a bit greasy and sticky.
I'd shoot some pics, but my digicam died on me last week.
I know that some exterior latex/acryllic paints will leak resin, but
don't recall the mechanism/reason. That which I have seen was amber
color, small amount. What brand/line of paint? How long between coats?
Was the wall cold when you painted? Cleaned/rinsed/dried before you
primed? What primer?
I would call the paint store. If you bought it at a home store, email
the paint company with precise info.
curing time) with Behr Premium interior enamel. Coats dried over night. It
was approx 75-78*F when painting.
At least I now have heard that resin CAN leak out of paint. I never knew
that. The weirdest part now is the fact that it doesn't appear to be
contamination-related, BUT all the spots are in about the same height on the
wall over a long distance. Spacing of the spots appears to be random
Sounds pretty weird - is this more than one wall? Along a taped joint?
Surface, as well as the room, was over 50 degrees? Did you do some
patching prior to the primer? A wild guess would be that four coats
might require more dry time than just one or two, didn't stir the paint
sufficiently each time, or that you primed over uncured patching compound.
Sounds to me like there was something on the wall that wasn't compatible
w/ the paint. I'd follow up w/ Behr and see if they have any
suggestions regarding cause based on appearance and your prep and
I'm thinking I'd wait a while and see what develops. If it stays
constrained in the one area I'd almost wager there was something either
drug along or hung on the wall at sometime that left a residue. Now
that it's repainted it may well require taking it back to bare wall to
get it cleaned up and re-prep'ed.
The restriction to a horizontal line doesn't sound like a trapped
moisture problem to me...that would tend to be much more generally
Like so often, would be interesting to know what final resolution turns
out to be, but OP will probably never return to tell... :(
Parts of this sound like left over wallpaper glue, which can work its
way through each successive coat unless an oil primer is used [or it's
cleaned off] first.
As far as being in a horizontal line.... I dunno, maybe it was a
chair-rail height border or something.
Although your claim that the drips are resinous, I can't resist asking you
if you could possible be seing the effects of a water leak somewhere.
Rainwater could enter the wall. Air-conditioning condensate, fresh-water
leak, or sewage seepage. You might even have a bathroom countertop that has
a crack in tile, allowing water to enter a wall, only to run out below.
You didn't say if your house is two-story, and if your damage is downstairs
I might suggest you place "humidity sensors" (like paper towels with
felt-pen writing on them) in various locations, to detect any unusual, or
localized, humidity phenomena.
But I more suspect that your undercoating of paint, or wallboard, was
contaminated with something, and it is leaching through the outer layer of
It's definitely not a water leak. This is on the second floor, nowhere near
any water source (plumbing) and the spots are randomly spaced, all at about
the same height on the wall (weird stuff, huh?) over a distance of about 20
I can't imagine that there was any contamination (although I understand
that's really what it looks like) since it was clean, dry builders flat
latex that I painted over.
What's wrong with putting latex over oil? If the undercoat were to leach
through the outercoat, what difference would it matter what kind of outer
coat was used? Latex is surely as impervious as any oil-based outercoat.
I just think the OP has defective paint somewhere. It should be stripped,
or the wallboard replaced.
Far more likely defective preparation or mismatched products (top coat
over a product not compatible, not cleaned properly, not primed
Latex over oil isn't recommended for many. There are oil-based primers
for use under either oil or latex topcoats, but that's not universally
Latex typically is <not> as impervious as oil. Some latex enamels may
As another poster has noted, there's almost nothing that can be
generalized about a paint <brand>, likewise there's not very much that
can be completely generalized about "oil-based" vs "latex-based" other
than the solvent/water cleanup. There's just too much difference
between various products to make all-encompassing generalizations.
-> I painted a large room with Behr Premium interior eggshell paint a few-> months ago. I didn't like the sheen of the eggshell, so I threw a coat of-> flat on top and it looked much better.-> -> After about 2 months there are now light areas forming that look extremely-> flat (no sheen) and there are noticeable drool lines coming down from them-> with little droplets of goo at the end. What's going on??-> -> The weird part is, it's only doing this on one wall. The rest of the room-> looks fine.-> -> Lastly, a few notes: All walls had flat builder's paint before I painted.-> The walls were clean. The wall with the spots has not been exposed to-> anything different than the other walls. There have not been any patches-> made to the wall.
Call the Jesuits. You need an exorcism.
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