A product which is VASTLY SUPERIOR to Balsarite is SIG "StixIt".

One thin coat, let dry and the wood itself is going to let go before the covering comes loose. (I found out the ONLY way to get the covering loose without damaging the wood is a liberal application of heat and SLOWLY pull the covering loose while keeping heat on it.)

I like to use this where I have cutouts for windows, etc and it is not feasable to try and "wrap" the covering around the edge.

Make sure you use this in a WELL VENTILATED area.