Problem with epoxy, though it bonds to many surfaces, is it tends to cure
relatively brittle and would probably have a different thermal coefficient
of expansion than the plastic you are bonding.

Consider using an adhesive such as Loctite Depend 330. 330 is an almost
instant boding two part adhesive (primer and gel) that, besides bonding to
many material types, retains more flexibility than epoxy and thus won't be
as likely to crack during thermal cycling. It's available from McMaster-Carr
on-line. Recommend the small size as it has a shelf-life of about 2 years or
so.

As and aside, 330 is excellent for such applications as bonding metal
directly to FRP. Good adhesive to have in one's tool cabinet (g).

bumper

"5Z" wrote in message
ups.com...
So, it appears this is a common problem, and one without a good
solution. Since the compass is useless to me as is, I plan to attempt
a repair before throwing in the towel and getting a new one....

Plan is to drain it and keep it in a "warm" place such as the dash of
my car for a few days to let all the oil evaporate. Then I'll take a
moto-tool and clean up an area around the circumferance of the leak to
accept an epoxy fillet. Before applying the epoxy, I'll put some thin
super glue in the crack to seal any small cracks (and ensure it can
never be disassembeld .

Will report the results in a few weeks.