>From the FAQ section:
Q: A prior owner sealed all the seams and windows with clear Silicone
Sealant and it won't some off. How can you get it off?
A: Short of sanding it off, try an expensive material called SU100
Silicone Sealant and Adhesive Remover. It is only available online in
larger quantities. It softens the sealant so it can be removed with a
non-metallic scraper or Popsicle stick. Other than that, Acetone will
work OK, but will attack any plastic it comes in contact with.
The SU100 is explained here:
http://www.rmoreau.com/su100.htm
If anyone has found a source for the quarts, let me know.
RJ