G3GirL
UUUHHHH-OOOOHHHHHHH...!!!
I don't mean to be rude, but judging by the looks of this repair, I don't think you removed all the rust properly. That's why it's still spreading right now. You just masked it. I just noticed.
well finally done...
If you did it correctly, you should have had a LOT more bare metal showing, not just the rusted area alone. You can see in the first picture how far the rust is spreading already. I would have sanded way more than what you did to remove the rust. Even if you did remove and neutralize it all (which I highly doubt judging by the looks of the picture in your other thread), plastic fillers require you to sand at least an inch to two inches beyond the part you want to repair. In the second picture, your paint looks like it's still intact around the damage. Tsk tsk.
Found this link through your other one in the regional section today. Thought I'd comment here, too.
http://www.clubintegra.com/board/showthread.php?p=250992#post250992