I just purchased a pre-fab coop through my local Tractor Supply. It had excellent reviews but all mentioned using a water seal on it prior to putting it together. It is already painted. I use Consumer Reports for most any purchase and Behr Semi-Transparent watersealing wood stain in "clear" gets the highest marks. However, the reviews for it on the CR site are terrible. I decided I better go to source of all coop knowledge here! The coop will have plenty of time to dry and cure before the chickens go in. This is a replacement for my old dilapidated starter tractor. Any suggestions on the best brand of water sealing stain to use?