Yes as LesUeda said ''When taken internally'' .

The better solution is to avoid using CA.
It is not strong as other glues in most applications due to the way it is often applied. .
It needs very accurate fitting of the glued surfaces.
It shrinks too much while curing.
It does not provide for a larger binding area (filleting of the glue).

Why use an inferior product that also happens to be more healh risks ?

Good old wood glue: Seg-Ment, Titebond, Weldbond, Lepage and similar is preferable for overlall wood gluing. Even fiewalls and landing gears can be using these glues with corner reinforcements.

Like someone says ''Glue it all together and sand away what does not look like an airplane''.
I love that statement.

Zor

None of what you state about CA is correct, with the exception of precision joints and I demand that anyway. I have done many build threads over the years, some featuring 40 to 55% aircraft and other than the sheeted parts that I now only use epoxy and vacuum on, I only use CA on my airframes, even on the motor boxes supporting 200 cc engines and landing gear assemblies with no glue line failures. In fact, I built a manned ultralight utilizing only CA as the glue, and a 425 lb. RC aircraft that the fuse and tail feathers were assembled with CA, some may remember the 70% Staudacher, well thats the one. So you see, if used correctly, CA is a very good choice. I build in and open door garage, so the smell of CA never really gets to me.


Bob


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