what kind of branch is it? Depending on the type, I don't know if I would even seal it. It's not a piece of processed wood, therefore it will maintain most of the natural sealing properties.
I wouldn't use any spray poly on the branches. I don't know what kind of poly you are using for a 3 day outgas time, but either they're not fully outgassing or you're preforming some magic. It takes a couple MONTHS for an oil based polyurethane to outgas. I've never seen a water based spray anything. Even the minwax polycrylic is an oil-latex forumla... cleans up with water but still takes a long time to outgas like any old oil based poly.
Now, if you really want these branches to be good "forever" and have a long time to let them sit out in your garage or wherever, get yourself a can of minwax spray polyurethane and spray them down in 3 coats. I'd just put them bare in the cage
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-Chris
The reason mainstream thought is thought of as a stream is because it's so shallow. -George Carlin
A fool doesn't learn. A smart man learns from his mistakes. A wise man learns from the mistakes of others. Which one are you?
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Current snakes:
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1.0 Black Rat (Frankie)
0.1 Texas Bairdi (Rosa)
0.1 Blue Beauty (Brunhilde)
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