[ho428]

Was painting a fiberglass trunk and spoiler, spoiler is new gel coat, trunk had been painted and cleared, had some repair done and was respraying it.
Base Clear. I sanded the trunk, cleaned with grease and wax remover, primed, sanded and cleaned again, same on the spoiler.
The spoiler turned out fine, but the trunk blistered and bubbled in various places, but didin't seem to at the repair spots. Have not cleared it yet.
I have just enough primer and paint to shoot it one more time but I have no idea what to do to prevent it again.
Suggestions?
I have no time, got to load and head to the track so this needs to be fixed fast, or at least presentable by this afternoon.