Cais short for Cyanoacrylates. Super glue is a cyanocrylate. CA you will find in a hobby store has several different applications. A thin blend will creep into every crack and pour. An example would be to seal up a spar on a balsa wing is already glued but coming loose a little. Medium and thick CA are used when the application needs a little thicker glue so is does not run all over the place. An example would be to glue together a foam wing.

The main differences between super glue and other CA types are the different applications. Thin, medium, thick, and foam safe. None foam safe CA will has a good chance of melting foam when it starts to cure.

I hope this helps. Every beginner should get a foam super cub, a bottle of foam safe CA, and some accelerator.</p>