On Oct 22, 8:05*pm, J Burns wrote:
The other day I bought a 1-oz tube of Harvey's Faucet and Valve Grease.
* It's little like vaseline but stickier and more viscous. *The tube
says it resists high temperatures.

I can imagine several plumbing applications for it. *Has anyone used
grease instead of teflon tape?

This grease is not an appropriate substitute for teflon tape.

This grease is a lubricant.
Teflon tape's major role is that of sealant.

Contrary to the belief & recommendations some:

1) NPT threads (national pipe threads -tapered) require the use of
sealant; dope or tape
2) the right spec of teflon tape is just fine for gas
http://www.imacsystems.com/Gas_Seal_...hread_Tape.pdf

cheers
Bob