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Geri Light
New stain is sticky

Our new front porch of pressure treated wood was stained with 2 coats and is still sticky after 2 months.After power washing and some light sanding, and some dry time..our newly stained (old) back deck floor is sticky after 1 coat. It's been 3 days and we have had high humidity and rain. We still need a 2nd coat of stain. We are using Behr premium semi-transparent weather proofing all in one wood stain and sealer. Will the sticky feel go away? Is there a remedy for this?

ordjen
Re: New stain is sticky

]I am not sure what exactly is going on, but there are a couple considerations when using new pressure treated wood:

Due to the way it is pressure treated, new pp wood can have an extremely high moisture content. It will often feel heavy due to the water in the wood. If you have access to a moisture meter, the readings should be in the single digits before a finish is applied. In a warm, sunny summer environment, the pp should sufficiently dry out in several weeks.

Further, some pp wood uses chemicals that make it not a suitable candidate for stain for a year or so. Obviously, I don't know what product you used. You might want to contact the lumberyard where you bought it or go to the manufacturer's website for information as to how to finish the wood.

The Behr product is acrylic based and should eventually lose that tackiness. Cool and high humidity definitely slow down the curing of any paint or stain. The Behr label clearly warns against even using it if rain is anticipated for 24 hours after application! Standing water on uncured acrylic stain is not a good idea.

I would not panic yet. Wait until you have had at least a couple days of warm DRY weather. I would not put that second coat on until the first feels cured. Obviously, if the deck gets direct sunshine, the process is speeded up.

It is water under the bridge, but I am a long time advocate of oil stains over water soluble, acrylic based products. All the water based products form a surface film. Anytime you have a surface film, you have the possibilty of eventual failure by peeling. When peeling occurs, stripping becomes necessary. An oil product will never peel. The oil penetrates without leaving a surface film. Oil does, however, require almost yearly re-oiling.

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