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What are the guidelines painting a brand new house? Is it true painting 2 coats too fast makes holes in the paint allowing moisture in?
Mahalo Community I need your urgent help! Bit of a disagreement with our painter. We used a standard outside paint (can't remember the exact name, but I do know it's the right stuff to use outside). He painted an undercoat then 2 hours later did another coat. We heard that this is too fast, you should allow the paint at least a few more hours because painting over it again develops tiny holes that allow the rainwater in behind the paint and comprises it.
Any experienced painters out there? I really need a source or link for this too so I can back it up. Thanks and any guidelines on painting a new house MUCH appreciated!
(I know there's only a M$1 tip but it's all I have :S )
Any experienced painters out there? I really need a source or link for this too so I can back it up. Thanks and any guidelines on painting a new house MUCH appreciated!
(I know there's only a M$1 tip but it's all I have :S )
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My dad used to own a painting company many years ago and, subsequently, I grew up helping to paint everything around the farm from the house to the picket fences. My dad used to call those little holes "holidays." I asked him why and he said when he owned his company, that for every little hole a painter left, he would get an unpaid holiday from work. It was a big joke.
Those little holes actually come from just not being thorough enough when painting, in other words, trying to get the painting job done too fast; not running the brush over the same area enough times, especially on textured walls. They can also occur when a painter is trying to make what paint he has left stretch too far.
Those little holes actually come from just not being thorough enough when painting, in other words, trying to get the painting job done too fast; not running the brush over the same area enough times, especially on textured walls. They can also occur when a painter is trying to make what paint he has left stretch too far.
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These pin holes are my biggest concern. Has anyone got a link that I can back this up with? I've tried looking but can't find anything...
Depends on the primer used, weather, and condition of the surface (siding, stucco, etc.).
Here is one example from Behr, exterior water-based primer:
"Dries to touch in 1 hour at 77°F (25°C) and 50% humidity. Lightly stained surfaces: topcoat in 4 hours, heavy stained surfaces: topcoat in 12-16 hours. Longer dry time required in cooler temperatures and in higher humidity."
The paint manufacturer puts specific instructions, as well as safety info, coverage, usage, etc. on paint containers for end users.
Some painting companies will mix their own, or re-use other containers that may not have this same information.
Here is one example from Behr, exterior water-based primer:
"Dries to touch in 1 hour at 77°F (25°C) and 50% humidity. Lightly stained surfaces: topcoat in 4 hours, heavy stained surfaces: topcoat in 12-16 hours. Longer dry time required in cooler temperatures and in higher humidity."
The paint manufacturer puts specific instructions, as well as safety info, coverage, usage, etc. on paint containers for end users.
Some painting companies will mix their own, or re-use other containers that may not have this same information.
And what about the thing about small holes? Is that rubbish?
Where did _you_ hear it? I showed you my link, you show me yours. ;)
Pinholes can from from painting too fast with rollers. Or rolling over (backrolling) or topcoating wet surface, where your roller will pick. the primer or first coat is not fully bonded to the surface, and the roller action will "pick" or pull up, exposing the material underneath.
I've seen it happen with interior latex that had separated...basically the top half of the paint container was watery paint. The thin coat didn't cover properly.
Be sure to check your math, too. If they started at one side of the house at 8am...finished at noon. Then broke for lunch and started up again at 1pm...they've given 5 hours of drying time to the first side of the house.
Pinholes can from from painting too fast with rollers. Or rolling over (backrolling) or topcoating wet surface, where your roller will pick. the primer or first coat is not fully bonded to the surface, and the roller action will "pick" or pull up, exposing the material underneath.
I've seen it happen with interior latex that had separated...basically the top half of the paint container was watery paint. The thin coat didn't cover properly.
Be sure to check your math, too. If they started at one side of the house at 8am...finished at noon. Then broke for lunch and started up again at 1pm...they've given 5 hours of drying time to the first side of the house.
That's exactly what I'm looking for!! :S I would've included a link if I had one, unfortunately this was word of mouth from another painter. And I can do the maths :P This guy really did leave only 2 hours between a coat, and it isn't exactly the Mediterranean here. Do you have a link I can use in my defence?
When I painted my house I usually waited about two hours to do the second coat of primer.. What I was told by a friend who is a contractor and who had nothing to do with my house, is that you need to use the best paint. I paid a little more and used what he recommended and I definitely do not regret it. I did two coats of oil primer and two coats of acrylic latex.
I know this has been answered already, but I had to put in my 2 cents worth about this. This happened to Me once before and I never understood why. It wasn't everything,. just the one wall. And I didn't paint it, I was at work.
I was told the same thing you were, though. Basically, use the best paint you can afford, make sure it's completely dry before doing the second coat. Also, make sure you're using the right primer. This website goes into some detail, maybe it'll help next time.
http://www.housepaintingtutorials.com/house-paint-color.html
Good luck!
I was told the same thing you were, though. Basically, use the best paint you can afford, make sure it's completely dry before doing the second coat. Also, make sure you're using the right primer. This website goes into some detail, maybe it'll help next time.
http://www.housepaintingtutorials.com/house-paint-color.html
Good luck!
Thanks so much for going to the extra effort!! it's really helpful, I can't wait to scour through it after school!!
Thank you, I appreciate it...but I just realized I put in a link that didn't work to the specific page I wanted to. I'm so sorry, good luck, here you go with the right one (hopefully)!
http://www.housepaintingtutorials.com/house-paint-colors.html
Bobbie
http://www.housepaintingtutorials.com/house-paint-colors.html
Bobbie
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