I am building another birdhouse, this one is made out of 12mm plywood. I am using a simple painted exterior, but I want to seal the inside walls. However, I am told you don't want anything with VOC, etc., in the interior. I noticed where I had glued the joints, in the corners where I wiped the excess away, it left a nice sealed looking finish. What if I diluted some Titebond III with water and 'painted' a thin coat on the raw interior wood? Wouldn't that seal the wood with a non-toxic and non-smelly finish?
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