painting a pressure treated wooden deck

Old 02-01-02, 10:24 AM
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Lightbulb painting a pressure treated wooden deck

Does anyone have any information on successfully painting a pressure treated wooden deck without it pealing the next spring?
The deck is approx. 11 yrs old. Thanks for any info.

Bill Fritzley
Old 02-01-02, 04:22 PM
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This is just an observation, but generally speaking painting a flooring surface like a deck is not a very good idea. As you have suspected it will be susceptible to chipping/flaking and also, more noticeably, it will wear in the traffic areas. If you want to make a pressure treated deck look better, try pressure washing and follow up with a good protectant; you would need to do the pressure washing before trying to paint it anyway. If you get it pressure washed and decide to go ahead with painting, do not apply the protectant.
Old 02-01-02, 07:51 PM
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I have always recomended people not paint or stain there treated wood, I simply did not want to take the fall if it didn't work. I have painted my own treated lumber with success, but not a whole deck or such. I checked out the website of wolmanized wood, one of the top makers of treated lumber and this is what they say:

Coating Treated Wood

The questions we are asked most frequently do not involve the processing or longevity of treated wood, but the proper procedures for coating it. Can I paint or stain treated wood? If so, how long must I wait before applying a coating? What about water repellent? These are good questions and, because of the number of different products available - in treated wood and coatings -- they do not have simple answers.

First of all, YES , you can stain or paint Wolmanized wood. Also, you can coat Wolmanized wood with a water repellent; in fact, we highly recommend it. The best way to tackle these jobs depends on the wood you have, its exposure, and the coating you plan to use.

PAINT . Do not apply paint until the wood is dry, both on the surface and internally. Otherwise, as the wood dries out, escaping moisture will cause blisters and poor adhesion in the paint. Once the wood is dry, the procedure for painting treated wood is no different from that for painting untreated wood. (We recommend against using paint on deck flooring because frequently used pathways, such as from the steps to the door, will become worn.)

More at

I also agree with the_tow_guy
Old 02-02-02, 06:51 AM
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I'll certainly agree with Chipfo and the_tow_guy.
Painting a deck's horizontal surfaces is asking for future problems.
As an advanced woodworker and part-time deck cleaner, there is only one way to seal a board, that is to finish all six sides. Untreated surfaces will still absorb moisture from underneath and wick water from the board ends.
Years ago I made the mistake of using marine spar urethane on a pair of cedar adirondack chairs. Now I have to refinish them every other year.
Your best bet is to choose an oil-base stain with water repellency and UV protection.
good luck,

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