When I worked as a natural gas pipeline grunt, Rectorseal(pretty sure
it was #5) was all we ever used to seal the service pipe threads into
the outside meter.  I used to think that stuff was expensive, but
ounce for ounce compared to Loctite, it is a great bargain.   Like
Permatex antisieze, one can will last a lifetime for most of us.....

DM&FS

At 12:05 AM 1/28/2012, Alistair Bell wrote:
>I seem to recall undoing some old connections and the stuff being,
>if not hard, at least firmer. Maybe I have the wrong sealant in mind
>or maybe it was on steam lines that i found the "harder" stuff.
>
>In any case, if there is better stuff as recommended below, I'd use it :)
>
>
>alistair
>
>
>
>
>On 2012-01-27, at 8:22 PM, John Anderson wrote:
>
> > I think you are cheritable Alistair, I don't think it even sets
> anaerobically (the thread stuff) as I've taken apart a lot of
> fittings and never found evidence it became more than sludge,
> nothing like real Loctite.  And you are right the external mess is
> a PITA.  And I've tried several tubes over time.
> >
> > Buy a can of the RectorSeal #5 folks and you will never need
> another pipe sealent for any purpose.  And my tiny can is 10+ years
> old and I just finally ran out.
> >
> > John