Old Fart if what you mean by balsa cement is the cellulose cements of the past such as Testors, ambroid and so on, then I would not recomend its use. In the past among all its other problems the critical one is its durability over time. It typically would only take a few years for the cellulose to harden and become brittle compromising the long life of your airplane.

After all even the motion picture industry figured out anything made of celluloid has a short life span unless extraordinary storage measures (temperature & humidity) are taken.

John