On Sun, 27 Mar 2005 11:08:00 GMT, Jim Thompson
wrote:

I recently had to remove a port light I had installed 10 years ago
with butyl tape. It was still in suck condition that I didn't even
bother to replace it. I simply reshaped it by hand to reform the
seal. But, what you heard about it not being an adhesive is correct.
It is not a substitute for 5200 or other adhesives and, IMO should
only be used in conjuction with mechanical fastening of some sort.

Joe