Removing Silicone from a Bathtub

I read the article from Anonymous and, being a cleaner for newly constructed 'spec' homes, just be careful of Goof-Off. It will take the shine off, Goo-Gone does not. And to spare your fingers from rubbing, use a large pink eraser or a Magic Eraser by Mr. Clean.

Here are a couple of suggestions that might work for you.
http://wiki.answers.com/Q/How_can_y ... emove_silicone_from_a_fiberglass_tub