When I gel coated it and left over night
The flange had dropped a little and unbeknown to me pulled away from the wing
Can I fill this
It's on the edge prob about 5 mm deep
And quite long
The part is going to be painted
Is it possible to fill with car body filler and infuse from ??

This is the wing and its to the left Which has saggedI suppose the fibreglass wing I moulded from may have sagged a bit when the unimold went off as there quite flimsy ?