Paint job is "patchy"


S

Scott

After having great success painting the bedroom a couple moths ago, I
decided to paint the livingroom this weekend. I used a different paint
brand this time (Glidden, a custom color mixed at Home Depot), and
stated with laying down a coat of primer on the drywall. A couple hours
later I went to paint the walls with the paint I had bought, but to my
dismay the finish looks "patchy." There are patches on the wall where
the paint is darker, patches where it is lighter, and it's very
noticeable and looks very unappealing.

What causes the paint to end up like this? I applied the paint using a
9" roller, and, I believe, applied the paint evenly. Used the same
technique I used when painting the bedroom, but this time the results
were far from satisfactory. I am contemplating trying a second coat of
paint tonight - will that help?

Am I screwed here? I'm not looking forward to repriming and repainting
with a different brand, but I'm afraid that's the path I might have to
take. Any suggestions or explanations as to why this paint job ended up
so dismally?

TIA
 
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D

Doug Kanter

Scott said:
After having great success painting the bedroom a couple moths ago, I
decided to paint the livingroom this weekend. I used a different paint
brand this time (Glidden, a custom color mixed at Home Depot), and
stated with laying down a coat of primer on the drywall. A couple hours
later I went to paint the walls with the paint I had bought, but to my
dismay the finish looks "patchy." There are patches on the wall where
the paint is darker, patches where it is lighter, and it's very
noticeable and looks very unappealing.

What causes the paint to end up like this? I applied the paint using a
9" roller, and, I believe, applied the paint evenly. Used the same
technique I used when painting the bedroom, but this time the results
were far from satisfactory. I am contemplating trying a second coat of
paint tonight - will that help?

Am I screwed here? I'm not looking forward to repriming and repainting
with a different brand, but I'm afraid that's the path I might have to
take. Any suggestions or explanations as to why this paint job ended up
so dismally?

TIA
1) Same primer as before? What kind?

2) You painted 2 hours after priming? I don't care WHAT the directions say.
I would've given it a day, and that assumes low humidity. At this time of
the year in many parts of the country, it's not quite cold enough for the
heat to run regularly, but not warm enough to have the windows open. If it's
been cloudy & damp, that means generally clammy air.

3) I don't know where Glidden ranks, in terms of quality, but I know it's
not junk. A second coat ought to do it, assuming there's nothing evil going
on underneath. It sounds like there isn't.

In the future, find a dealer for Martin-Senour paint. Seriously good stuff.
Barring any odd conditions, you'll only need to paint once.
 
C

curmudgeon

Hard to tell what you're talking about when you apparently use the terms
primer and paint interchangably.
 
S

Scott

1) Same primer as before? What kind?

Yes, Kilz2 Primer/Sealer

2) You painted 2 hours after priming? I don't care WHAT the directions say.
I would've given it a day, and that assumes low humidity. At this time of
the year in many parts of the country, it's not quite cold enough for the
heat to run regularly, but not warm enough to have the windows open. If it's
been cloudy & damp, that means generally clammy air.
I take that back, I've not had much sleep this weekend and misspoke.
Here's what I did:

-- On Saturday morning I prepped (moved furniture, laid dropclothes,
etc.). Sat. afternoon I primed the walls and ceilings

-- On Sunday morning I painted the ceiliing with Behr Premium Swiss
Coffee Flat, then ran some errands

-- Sunday afternoon/evening, I painted the walls with the Glidden paint.


The ceiling turned out fine, the walls are really patchy. I think what
I'll try is a second coat on one of the walls tonight or tomorrow, and
see if that evens it out. Barring that, I guess I'll reprime and repaint.
 
S

Scott

Where did I interchangeably use these terms?

Here's a rundown of what I did:

-- On Saturday morning I prepped (moved furniture, laid
dropclothes, etc.). Sat. afternoon I primed the walls and ceilings

-- On Sunday morning I painted the ceiliing with Behr Premium Swiss
Coffee Flat, then ran some errands

-- Sunday afternoon/evening, I painted the walls with the Glidden
paint.

TIA
 
D

Doug Kanter

Scott said:
Yes, Kilz2 Primer/Sealer



I take that back, I've not had much sleep this weekend and misspoke.
Here's what I did:

-- On Saturday morning I prepped (moved furniture, laid dropclothes,
etc.). Sat. afternoon I primed the walls and ceilings

-- On Sunday morning I painted the ceiliing with Behr Premium Swiss
Coffee Flat, then ran some errands

-- Sunday afternoon/evening, I painted the walls with the Glidden paint.


The ceiling turned out fine, the walls are really patchy. I think what
I'll try is a second coat on one of the walls tonight or tomorrow, and
see if that evens it out. Barring that, I guess I'll reprime and repaint.
My primary experience with Kilz was years ago when the product's claim to
fame was that it was especially good at hiding stains which insisted on
bleeding through normal primers. Now, they've got other products. My
girlfriend primed our kitchen with Kilz because that's what the Highly
Trained Paint Expert at Home Depot told her to use. Even when mixed, it
seemed pretty thin, and it didn't cover well.

I commandeered the project (because I'm impatient), and we continued with
Martin-Senour paint, after she re-primed the walls again. The next room will
be done with MS primer, not Kilz. I'd strongly suggest that in the future,
you open the yellow pages and find a store whose only business is paint. The
really good stuff isn't that much more expensive, especially when you take
into account that you may have to paint twice with the cheap stuff.

My only other thought is whether your walls were clean when you painted. Air
movement can exist in odd patterns in a house, and stuff like cooking
effluents & cigarette smoke can leave deposits in an uneven fashion.
 
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S

Scott

Doug, thanks for your reply.
My only other thought is whether your walls were clean when you painted. Air
movement can exist in odd patterns in a house, and stuff like cooking
effluents & cigarette smoke can leave deposits in an uneven fashion.
I whiped them down on Sat during prep with a sponge and a little soapy
water. It's not like the patchiness is located in one spot. It's
everywhere. On all four walls, on the stairs leading up from the living
room, on the banister, etc.

It's like there are dark rectangles and light rectangles. It's really
disappointing.

I'll definitely go with more upscale paint moving forward. Hopefully
the 2nd coat will even out these disparities, but we'll see.

Thanks again.
 
D

Doug Kanter

Not supposed to COVER. It is to seal stuff and make the paint stick.
That is why you put paint on top of it. Depending on how the old
coating absorbs, primers may be absorbed irregularly and need two coats
to make the paint go on evenly. That's what the guy with the paintbrush
said, even before we told him to do only one coat of primer.
Right, but we're talking about two different products: I'm referring to the
Kilz product that was common when I first tried it 15 years ago. You seem to
be talking (correctly) about OTHER more common primers, in general.
 
K

Kyle Boatright

How many coats did you apply? I've been painting a bunch recently, and
simply can't get *good* coverage with one coat, regardless of paint brand.
My one coat jobs would be OK if I was selling the house (i.e. they look OK
from 5' ), but they are not good enough for me to live with for 5 or more
years.

Also, from another response you made, I saw that you used Behr paints on
part of the job. Was this the Home Depot version of Behr? If so, count on 2
coats, because that is a cheap paint with a good brand label on it...

KB
 
F

Fogbank

Scott said:
After having great success painting the bedroom a couple moths ago, I
decided to paint the livingroom this weekend. I used a different paint
brand this time (Glidden, a custom color mixed at Home Depot), and
stated with laying down a coat of primer on the drywall. A couple hours
later I went to paint the walls with the paint I had bought, but to my
dismay the finish looks "patchy." There are patches on the wall where
the paint is darker, patches where it is lighter, and it's very
noticeable and looks very unappealing.

What causes the paint to end up like this? I applied the paint using a
9" roller, and, I believe, applied the paint evenly. Used the same
technique I used when painting the bedroom, but this time the results
were far from satisfactory. I am contemplating trying a second coat of
paint tonight - will that help?

Am I screwed here? I'm not looking forward to repriming and repainting
with a different brand, but I'm afraid that's the path I might have to
take. Any suggestions or explanations as to why this paint job ended up
so dismally?

TIA
all i can figure is that there may have been some sort of substance on
your walls in the areas that it's showing through thats coming through
the primer. give it a second coat and see what happens. if it is a
flat, pearl or satin finish it should dry out evenly if applied well.
another cause could be cold spots if it's on an exterior wall.
sometimes the studs will "show through" as alomost a shadow - this is
typical for oler homes will little wall insullation.
 
A

ares

I thought Glidden was pretty crappy paint. Behr premium plus seems a little
better than that. I think it's the paint. Ace Premium paint was very good
and I hear Sherwin williams is great stuff.
ares
 
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N

newfy.1

The ceiling turned out fine, the walls are really patchy. I think what
I'll try is a second coat on one of the walls tonight or tomorrow, and
see if that evens it out. Barring that, I guess I'll reprime and repaint.
Did you paint a dark color by any chance? Sometimes with dark colors like
reds and dark blues you need up to three coats.

JennP.
 
S

Scott

newfy.1 said:
Did you paint a dark color by any chance? Sometimes with dark colors like
reds and dark blues you need up to three coats.
Jenn, it was a medium brown color. In any event, I decided to hell with
it, and reprimed the entire surface last night after picking up some
Berh Premium paint in a different, lighter color. Planning on painting
*again* tonight, hopefully it comes out! :)
 
S

Scott

Kyle said:
How many coats did you apply? I've been painting a bunch recently, and
simply can't get *good* coverage with one coat, regardless of paint brand.
My one coat jobs would be OK if I was selling the house (i.e. they look OK
from 5' ), but they are not good enough for me to live with for 5 or more
years.
We had only done one coat at the time. It's wasn't ok from 5' away - it
was pretty horrid 10' away. I contemplated doing another coat, but
decided to hell with it, and reprimed last night after picking up some
higher quality paint in a lighter shade.

Also, from another response you made, I saw that you used Behr paints on
part of the job. Was this the Home Depot version of Behr? If so, count on 2
coats, because that is a cheap paint with a good brand label on it...
Yeah, picked up from Home Depot. I don't mind two coats of paint - it's
what I've done before. The paint job that was really patchy, though,
was Glidden from Home Depot. Not recommended.
 
S

Scott

all i can figure is that there may have been some sort of substance on
your walls in the areas that it's showing through thats coming through
the primer. give it a second coat and see what happens. if it is a
flat, pearl or satin finish it should dry out evenly if applied well.
another cause could be cold spots if it's on an exterior wall.
sometimes the studs will "show through" as alomost a shadow - this is
typical for oler homes will little wall insullation.
The walls were interior walls (save 1), and the home is 20 years old.
It was really patchy all over the place, at various heights. There was
no logical pattern, as I would assume so if studs were causing the
problem. Also, the insulation is pretty good, I think. I live in
Southern California, so it's not like it's needed for the weather, but
the noise in the adjoining unit is non-existant through the walls, even
if they're raising holy hell.
 
D

Doug Kanter

Scott said:
We had only done one coat at the time. It's wasn't ok from 5' away - it
was pretty horrid 10' away. I contemplated doing another coat, but
decided to hell with it, and reprimed last night after picking up some
higher quality paint in a lighter shade.



Yeah, picked up from Home Depot. I don't mind two coats of paint - it's
what I've done before. The paint job that was really patchy, though,
was Glidden from Home Depot. Not recommended.
Consumer Reports did a thorough test of house paints a while back. I don't
recall the results, but you can subscribe to a month's access to the web
site for about seven bucks, and download & print the report. Might be
worthwhile if you have a lot more painting to do.
 
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S

Scott

For those following this thread, the end resolution was that I reprimed
the walls and repainted with Berh Premium paint. The Berh paint
exhibited none of the patchiness that was painfully evident with Glidden.

That's the last time I ever use Glidden!

Thanks to everyone who responded....
 

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