RE: Ironing on Balsa sheeting
I never heard of this working on white glue, are you sure you are not using an aliphatic glue? I know it works on aliphatics such as Titebond and Elmers as I use it to put on cap strips. Yes, the wood is a pretty good insulator and it takes a hot iron and you have to work slow enough for the heat to penetrate thru the wood. Another thing, the first joint is quite strong, however, if you reheat to reposition an already heated joint, the second joint is much weaker than the original one is.