Gasket for Thermostat Housing

["tom felts" <tomfelts@earthlink.net>]

Anyone replace a thermostat lately?  If so, what kind of gasket or gasket
material did you use.  I made the mistake of using a gasket sealer--which,
of course, failed.  I have some gasket material that you lay a bead with
and then tighten just enough that the material doesn't ooze out.

Before I use it I wanted to see what others use.  

BTW--I added a 180 F thermostat----assume that is what most use?

TIA
Tom
65 BJ8