Old balsa kit CA glue will not bond
I have an old balsa kit that has been stored in attic for 15 years. Recently decided to finish this kit. CA glue will not bond balsa together well. The glue is good as it works on new balsa. This kit was subjected to high heat and cold temps in attic. Also, could have gotten wet but is dry now. Will I need to use some other glue on this old balsa? Thanks