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Old 08-23-2012, 11:44 PM   #1
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I'm painting some kiln dried 2x4s and want them waterproof, any suggestions on paints to use,
Thanks
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Old 08-24-2012, 04:37 AM   #2
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Not sure what you mean by water proofing or if it is even possible, but a quality primer and acrylic top coats will probably do as well as anything

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Old 08-24-2012, 08:22 AM   #3
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Like maybe some of the epoxy paint you paint cellar floors or a good exterior paint
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Old 08-24-2012, 11:24 AM   #4
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I don't understand what you are trying to achieve. Help please? Are you trying to protect long grained surfaces, end grain you are putting in ground contact or what? Building a spruce mast for a sailing vessel? I have lots of experience with those.
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Old 08-24-2012, 02:32 PM   #5
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What I'm doing is biulding supports for the outside of my above ground pool. One of the supports will have ground contact. Right now I have "PT" wood, but was told "PT" attached to aluminum (pool) will cause the aluminum to rust/corrode quicker. So my plan was to get kiln dried 2x4s and paint them (white) to make them look better and protect the wood from rotting too fast
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Old 08-24-2012, 02:57 PM   #6
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They changed the formula in pressure treated wood, and it will rot even galvanized pretty quickly unless its hot dipped and prefferably coated too - or stainless.

I've seen bright galvanized hardware rot out in a year in that stuff (#10 screws holding a storm door on)

the kiln dried stuff you can paint immediately, and I would if it's in contact with your pool. What you use depends on what kind of quality you're going for. You can use a solid surface deck stain - Sherwin Williams Deckscapes - and just two coat it without a primer and it'll last for a pretty long time.

Or you could use an XIM primer (400 or UMA) and go over it with SW Duration, but it will cost a good bit more.
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Old 08-25-2012, 07:59 PM   #7
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Beyond nice primer and then nice housepaint, or solid color stain as suggested (both viable options by the way) you could step up to some marine topside finishes including one or two part white epoxies and urethanes. They can be problematic if your fittings crack them. You could dip the soil ends one of the white rubber coating materials or even wrap in fiberglass with white colorant in the resin as long as you are not burying them.

What kind of kiln dried lumber were you thinking by the way? You might want to bite the bullet and get cedar or redwood?

What about using one of the nicer synthetic building materials?

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Old 08-25-2012, 11:35 PM   #8
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Quote:
Originally Posted by sdsester View Post
Beyond nice primer and then nice housepaint, or solid color stain as suggested (both viable options by the way) you could step up to some marine topside finishes including one or two part white epoxies and urethanes. They can be problematic if your fittings crack them. You could dip the soil ends one of the white rubber coating materials or even wrap in fiberglass with white colorant in the resin as long as you are not burying them.

What kind of kiln dried lumber were you thinking by the way? You might want to bite the bullet and get cedar or redwood?

What about using one of the nicer synthetic building materials?
He's talking about KDPT - kiln dried pressure treated. They kiln dry it so it's not soaking wet when you get it. Supposedly this limits it's twisting and bending as it dries like the wet stuff will do.

One word of caution - I've heard that stuff will twist anyway - I've never used it personally, we get the wet stuff

It's paint ready when you install it though - but idk if it's worth kiln drying.

We see a lot of cedar around here. Not overly expensive considering. There's also a good bit of cypress. It's pretty rot resistant too. I did some cypress siding last year to match existing. It was less expensive than the cedar.
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Old 08-26-2012, 08:30 AM   #9
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Quote:
Originally Posted by smalpierre View Post
He's talking about KDPT - kiln dried pressure treated.
I read his posts differently. I read that he is leaving pressure treated completely for fear of reaction with fittings and I don't see that he said he was thinking of KDPT. Maybe he is. I can see where you would draw that conclusion. Not sure it effects finish recommendations one way or the other.

Forgot about cypress by the way. Not something we see a lot of up north but would be a good option.
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Old 08-26-2012, 01:03 PM   #10
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Yeah, I'm not using PT, and want to paint it white to match the supports that came with the pool
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