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General Forestry => General Board => Topic started by: Warbird on September 08, 2009, 11:21:44 AM

Title: Painting pressure treated lumber?
Post by: Warbird on September 08, 2009, 11:21:44 AM
Hey guys.  I've searched around and opinions vary on whether you can paint pressure treated wood.  I just bought a couple of 4x4's to use in some deck repair.  They are pressure treated and reddish/orange in color.  They seem sort of damp to the touch but might just be cool.  My hands turned orange from handling them.

Any of you guys ever tried painting lumber treated in such a way?  Looking for some real world experience.
Title: Re: Painting pressure treated lumber?
Post by: Radar67 on September 08, 2009, 11:49:18 AM
Most of the pressure treated wood I have dealt with is still wet when I get it. After a little time it will dry out, crack, warp, bow, etc. Once it dries, I've had no problem painting with oil based paints.
Title: Re: Painting pressure treated lumber?
Post by: beenthere on September 08, 2009, 12:44:28 PM
However, best not to paint pressure treated. Best to use a semi-transparent stain.

Oil based paints have been known to be a problem, in due time. And when some of the paint sticks tight, with some blistering or peeling off, the real frustration comes when trying to correct that problem.
Title: Re: Painting pressure treated lumber?
Post by: gary on September 08, 2009, 01:02:47 PM
I wait 1 year before painting. Have had no problems after that. Paint with latex or oil.
Title: Re: Painting pressure treated lumber?
Post by: florida on September 08, 2009, 01:30:20 PM
We use a lot of PT on decks and rails and paint all of it. You have to let it dry first though or it will peel. We shoot for at least 3 months of hot, Florida weather then sand, prime and topcoat. It lasts just fine.
Title: Re: Painting pressure treated lumber?
Post by: Warbird on September 08, 2009, 06:28:01 PM
Thanks guys.  Based on your experiences and more research I've done, I will paint the existing wood, put in the new pressure treated stuff and let it sit all winter.  Late next summer, we'll paint it or I will be building a new deck, if I can afford it.
Title: Re: Painting pressure treated lumber?
Post by: Magicman on September 08, 2009, 10:27:04 PM
I just re-stained some pressure treated boards this weekend.  After drying, I had stained them with Benjamin Moore Semi-Transparent 13 years ago.  It didn't come off, just sun faded.