Sealing Exterior Plywood (Stain ?)

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Forum topic by Treedin posted 09-30-2016 06:06 PM 467 views 0 times favorited 4 replies Add to Favorites Watch
View Treedin's profile


3 posts in 1246 days

09-30-2016 06:06 PM

Im building a dog house that is actually attached to the back side of our house next to and attached to cider blocks. Anyway I should have investigated more before I bought my exterior wood and had the chain store cut down the pieces that I needed but Ive bought what I have which is pictured. One picture has the info and the other pic is the side view of three sheets side by side.
My biggest concern is sealing the layered (glued) plywood and what do I need to do for longevity ?
Im not that concerned with appearance as much as I am protection in the long term.
I was thinking an oil or water based solid colored stain but then what ? Wait a year then waterproof sealer or more stain ?
Will the oil based stain loosen the glued layers in time ?
Yes thats right Im a newby but Ive already read and researched so many different items that my head is spinning.
Suggestions please.

4 replies so far

View Bill White's profile

Bill White

5252 posts in 4602 days

#1 posted 09-30-2016 07:10 PM

Use a good exterior paint. Stain won’t last.

-- [email protected]

View Treedin's profile


3 posts in 1246 days

#2 posted 10-01-2016 01:41 PM

Use a good exterior paint. Stain won t last.

- Bill White

Sounds great.

View jerryminer's profile


960 posts in 2083 days

#3 posted 10-01-2016 08:24 PM

I agree with Bill. The best protection is a good quality exterior paint.

“Solid Body stain” is a lot like paint, but with less “binder” in it, so instead of forming a film, it’s like a powder that is stuck to the surface. Over time, as it deteriorates in the sun and weather, the pigment sloughs off and needs to be re-coated. The good news is it doesn’t “flake” or “peel” like a film finish (paint), but it also doesn’t last as long (but can hold up for several years).

For maximum endurance, be sure to carefully seal (paint) the cut edges of your pieces. The edges are the most vulnerable, as they have exposed end-grain, which absorbs moisture faster than the surface, and can lead to de-lamination of the plywood if not well-sealed.

-- Jerry, making sawdust professionally since 1976

View Treedin's profile


3 posts in 1246 days

#4 posted 10-02-2016 03:33 PM

Thanks for the help.

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