Painting/ Staining PT Lumber On A New Deck

 
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Old 04-17-2012, 08:20 AM   #1
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Painting/ Staining PT Lumber On A New Deck


I'm sure this has been covered, so forgive me, but my Google-fu is lacking this morning.....

Our local yards store all the PT lumber outside. It gets wet, and is never what I'd consider "dry enough" when we get to install it. This poses a problem for me when it comes to finishes, because I've yet to see a paint or stain that'll stick to it reliably.

What I'm doing currently, is asking my customers to wait. Generally I'll build it and then ask them to wait a minimum of 3 months for the material to "weather" a bit and dry out, and then we return and apply the finish they're after. As you can imagine, this is a giant pain in my ___, and a better way would save me and my customers a great deal of aggravation. I have neither the space nor the funds to buy a seasons' worth of material and store it in the dry myself.

What do you guys do? When you build a new deck / fence, what specific procedures and/or products do you take (prep., primer, paint/stain, how many coats, etc.) when dealing with wet PT lumber?

** Yes, I realize that using composite materials would solve this problem. If you can consistently sell the farmers around here a composite deck system, I need to ride along with you on some sales calls and take notes. **
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Old 04-17-2012, 08:29 AM   #2
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Re: Painting/ Staining PT Lumber On A New Deck


let it dry, 2 - 6 months, powerwash, stain

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Old 04-17-2012, 08:53 AM   #3
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Re: Painting/ Staining PT Lumber On A New Deck


There is never any reason to use a power washer on a Deck,man made or wood.

Re read.

Again.

There is never any reason to wait for Anything but good weather to put the finish on an outdoor project. No matter what kind of material is used.

Re read.

Again.

One more time.


JonMon www.deckmastersllc.com
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Old 04-17-2012, 08:53 AM   #4
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Re: Painting/ Staining PT Lumber On A New Deck


Treated pine is wet cause it's treated in a water soluble solution while in the bundle. Until it gets unbundled at a lumberyard, put out on a jobsite & installed it will stay wet. Even in our drought we had last year with no rain for months the treated was still wet.

There is absolutely no reason to wait months after it installed. Usually by the time the deck is finished the wood will be dry enough to stain, at most a few days in the sun will dry it out. Try using TWP next time you stain one, it works well on treated pine, the 100 series if you can get it.

Never paint a deck, maybe railings, but certainly not the decking.

Al is too slow, John beat me to the punch, ha.
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Old 04-17-2012, 08:59 AM   #5
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Re: Painting/ Staining PT Lumber On A New Deck


We use and reccomend ppg paints sun proof deck stain 3 different grades to choose from and does a great job on wood that is still wet.have used it for 2 years now and have never been called back because of paint of stain coming off. Just my two cents
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Old 04-17-2012, 08:59 AM   #6
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
There is never any reason to use a power washer on a Deck,man made or wood.

Re read.

Again.

There is never any reason to wait for Anything but good weather to put the finish on an outdoor project. No matter what kind of material is used.

Re read.

Again.

One more time.


JonMon www.deckmastersllc.com
all deck stain and paint mnfg's want a clean surface and proprer moisture content (i think under 13%?).... not sure how you get rid of mill glaze, "slime", mildew, and dirt before you coat it. i hope you don't just coat over it, and i hope you have a more accurate way of measuring moisture content other than "good weather"

Last edited by world llc; 04-17-2012 at 09:02 AM.
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Old 04-17-2012, 09:05 AM   #7
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
There is never any reason to use a power washer on a Deck,man made or wood.

Re read.

Again.

There is never any reason to wait for Anything but good weather to put the finish on an outdoor project. No matter what kind of material is used.

Re read.

Again.

One more time.


JonMon www.deckmastersllc.com

Re-read what? Is there some instruction manual I should be re-reading (or should read for the first time...)?

The problem comes for me when I apply a paint or stain to a new deck or fence, following whichever-product manufacturers' instructions to the letter, then have to go back at the end of the season and do it again because the finish is flaking off or is covered in bleed-through from whatever is in the lumber.

I'll admit that I'm no expert on exterior finishes. What should I be doing to raw PT lumber to acheive a lasting finish?

And you'd be amazed how many folks ask me to paint the surface of a deck. I wouldn't paint one for myself on a bet, but the customer is always right, right?
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Old 04-17-2012, 09:07 AM   #8
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Re: Painting/ Staining PT Lumber On A New Deck


World Dude....you are using ice age thinking. And just regurgitating a mith that it seems will not go away.

" mill glaze " is gone after a few days in the sun. A new deck is not going to have any " slime " on it. One thing you got right is the source of this mis information that being the finish suppliers not the wood suppliers. The longer you wait,x100 with pt decking,the more the product splits/cracks,shinks Thus the more finish/prep is needed.

Put a brush load of twp 100 series on a total wet pt board and try to get it off.

J
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Old 04-17-2012, 09:09 AM   #9
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by world llc View Post
all deck stain and paint mnfg's want a clean surface and proprer moisture content (i think under 13%?).... not sure how you get rid of mill glaze, "slime", mildew, and dirt before you coat it.
No one said not to clean the wood. Just don't use a pressure washer, because that will damage it.

In many parts of the country, exposed wood will never get down to 13% moisture.
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Old 04-17-2012, 09:10 AM   #10
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Re: Painting/ Staining PT Lumber On A New Deck


Yo XJ

This is exactley that. Your not an expert on outdoor finish.


Hang on to your paint brush and learn.

J
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Old 04-17-2012, 09:18 AM   #11
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Re: Painting/ Staining PT Lumber On A New Deck


Say you really want to get at it with a deck floor installed with pt decking.

That woud be a little silly because no matter what finish is used,or when its used,or what kind of fastener is used the stuff is going to through a fit like a 2 year old in a short time.

But say you did want to. Use an oxalic acid wash,brush it in,I use a floor machine with a red pad, rinse it off completley, let it dry,put on two coats of twp 100 series rustic.

In hmmmmm 40 days put another coat on.

Bang Bang you gave it a fighting chance.

J.
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Old 04-17-2012, 09:22 AM   #12
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
World Dude....you are using ice age thinking. And just regurgitating a mith that it seems will not go away.

" mill glaze " is gone after a few days in the sun. A new deck is not going to have any " slime " on it. One thing you got right is the source of this mis information that being the finish suppliers not the wood suppliers. The longer you wait,x100 with pt decking,the more the product splits/cracks,shinks Thus the more finish/prep is needed.

Put a brush load of twp 100 series on a total wet pt board and try to get it off.

J
i agree, if you leave it untreated for too long it will split and crack...

we have always (and learned from the paint mnfg's, so i am kinda open to what you are saying) let it reach equilibrium over the corse of 2 or more months.

other than wet seasons, or after winter, has this not gotten us under 13% (i am in new jersey and we get there)

after sitting it is slimey from nature and needs a good washing

let me state i have been tought the ways of the powerwasher and i am not blasting it with a 10 degree tip 4 inches away, we spray some mild detergent (sometimes bleach) let it soak, scrub with deck brush and rinse. same for re-coats, mostly....
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Old 04-17-2012, 09:29 AM   #13
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
Yo XJ

This is exactley that. Your not an expert on outdoor finish.


Hang on to your paint brush and learn.

J

I understand that. I simply want to give my customers a product that will last and look good for a long time after I'm gone. I want to do it right, ok? So far the only way I've been able to do that is to let the lumber weather, clean it, and then apply the finish. There has to be a better way.

I think this could be / is a great discussion, as I'm sure I can't be the only one who builds these things and then struggles with finishing them acceptably.

So, again....

What should I (we) be doing, step by step, to acheive an acceptable finish on raw PT lumber?
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Old 04-17-2012, 09:30 AM   #14
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
Say you really want to get at it with a deck floor installed with pt decking.

That woud be a little silly because no matter what finish is used,or when its used,or what kind of fastener is used the stuff is going to through a fit like a 2 year old in a short time.

But say you did want to. Use an oxalic acid wash,brush it in,I use a floor machine with a red pad, rinse it off completley, let it dry,put on two coats of twp 100 series rustic.

In hmmmmm 40 days put another coat on.

Bang Bang you gave it a fighting chance.

J.
You type faster than me...

Thank you. That's good advice, and something I'll try. 'Preciate it!
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Old 04-17-2012, 09:31 AM   #15
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Re: Painting/ Staining PT Lumber On A New Deck


There is no equilibrium with pt lumber. There is not even a brium.

The longer you wait the more finish is required and the more damage has happened.

There are a select few that know how to use a power washer. However there is no reason to do that. It's just not needed.

The oxalic does the work for you.

J.
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Old 04-17-2012, 09:38 AM   #16
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Re: Painting/ Staining PT Lumber On A New Deck


Power washing new deck wood is done to remove mill glaze as well as any mo;d, mildew and dirt from the wood. It should be done 3 to 6 months after it is installed.
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Old 04-17-2012, 09:42 AM   #17
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Re: Painting/ Staining PT Lumber On A New Deck


Why do I even try with Folks like you. Ghesssssssssss


Class over. Youall do what you want to do.


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Old 04-17-2012, 09:45 AM   #18
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Re: Painting/ Staining PT Lumber On A New Deck


Quote:
Originally Posted by John Hyatt View Post
There is no equilibrium with pt lumber. There is not even a brium.

The longer you wait the more finish is required and the more damage has happened.

There are a select few that know how to use a power washer. However there is no reason to do that. It's just not needed.

The oxalic does the work for you.

J.
i'm not sure what you mean by there is no equilibrium, all wood will reach it with it's enviornment. PT comes to us in a fiber saturation state (over 22% or somewhere about) we know this because it is so god awfull heavy and spits water around the screw head.

the moisture content is higher than the enviornment its in, it gives it off, we all know this

when it gets to the point where it's stable throughout and taking on/ giving off moisture stablely, it's ready

can this be done prior to the 2 or more months i wait? maybe, i have never thought to go back and test MC prior to....

i will, on my next PT, look into your suggestions as it is more appealing to finish the job sooner
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Old 04-17-2012, 10:41 AM   #19
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Re: Painting/ Staining PT Lumber On A New Deck


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Power washing new deck wood is done to remove mill glaze as well as any mo;d, mildew and dirt from the wood. It should be done 3 to 6 months after it is installed.
The ONLY reason to use a pressure washer on a deck is when using a high volume low pressure tip to rinse the chemicals off.

The chemicals and sometimes the help of a deck scrub brush do the work. Using high pressure to clean a deck damages the wood and takes years off the life of the deck.
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Old 04-17-2012, 10:47 AM   #20
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Re: Painting/ Staining PT Lumber On A New Deck


To answer the OP's question. There is no certain amount of time to wait before staining. It all depends on the moisture content of the wood. I've carried boards that were sopping wet and within 3 days they were below 13% moisture and moving all over the place. I've had other decks take 3 months (during winter time here) to get to where they were ready for stain.

The deck has to be cleaned before staining. Cleaned, not pressure washed. Any mill glazing must be removed and no, 3 days in the sun doesn't remove mill glazing. Perhaps sometimes it might but I just had a deck that was over a month old with mill glazing. The cleaner and a scrub brush got rid of it.

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