my dozy advice is to not use Teflon tape in gas connections, but rather use
the stuff in a tube...too sleepy to remember specific brand name (in
archives)...I use it at work on stainless and copper/brass tubing
fittings...

seems to work much better than tape (but does take a while to firm up
consequently the damn white stuff gets everywhere *S*) and you avoid the
risk of getting bits of tape stuck in valves, jets etc

wish I could recall brand name...zzzzz

Alistair

on 19/10/02 8:04 PM, Bill Davidson wrote:

> I've got my new propane tank bolted to the under side...
> And I have cut and bent and flared tubing ends...
> ready to connect the tubing and tighten the flare nuts...
>
> but a question...
>
> I noticed that when I took the flare nuts apart there was a dark colored
> greasy like substance on the threads... and maybe on the flared ends of the
> tubing... Originally I though that might be old propane decomposed into
> sludge... but now I'm wondering if the previous installer put a dab of axel
> grease on the flares.... perhaps it assures a better seal???
> Anybody know what that black stuff is on the flare ends?
>
> thanks,
>
> Bill Davidson