Originally Posted by tommyt
So is there is no way of doing it in the mold when laying up the hollow molded wing???
Well, I have seen some molds where the seal was included in the skin layup, but it is not common. Normally any seals are added after the fact.
If you want to do it, one way would be to bond in a preformed seal section when you glue in the ribs (etc.) before closing the molds. The other way would be to make the molds such that the ailerons are deflected and the seal area is exposed... so the seal can then be integral with the aileron skin.