Originally Posted by Grigg
Here's the info on Permatex #2
it's a "Slow-drying, non-hardening sealant designed for sealing cut gaskets and stamped parts. Allows for easy disassembly if required. Temperature range -65°F to 400°F (-54°C to 204°C); resists common shop fluids and fuels. Use where sealing is more important than adhesion."
Looks like tooth paste but black and a little stickier.

Grigg

we used it in the navy deep down in the propulsion plants. we'd get in jumbo tubes and used it on almost everything. the part that its "non hardening" is B.S. but then we went over the upper temp range by 2. when dealing with 1200 psi @950* steam you want something that does the job and ole #2 did it. we hated it and i now only use it in certain applications because i still hate it but i will choose this over snot anyday.