Roger Long wrote:
I never heard of this stuff but it's used to glue some new skylight
gaskets I'm ordering to the frames. $22.95 a tube from the skylight
company. Is this stuff commonly available under a different name or
is there an alternative?

GE (who makes Lexan) suggests Silpruf for gluing Lexan.

Dow Corning 795 is what I used to glue Plexiglass windows in place.
Same stuff is used on skyscrapers to bond glass windows in place.

Both are not commonly available to the public, but may be available
from glazing companies.

Evan Gatehouse