Kim,
You can reseal it with the yellow stuff that comes with the engine
gasket kit.  Or if you don't have any of that you can use blue permatex
or ultra blue.  The problem is that some times what is really going on
is that they head has cracked externally near the head nut area.  This
is a common failure of factory VW heads.  In that case your only fix
would be to pull the head and install a new one along with a new
gasket.  If you have a 1.9l engine the heads for this have been
discontinued about three years ago so you would want to replace both
heads with new 2.1l versions.  It will work no problems as long as you
replace them in pairs.

Let me know if I can help you further,
Ken Wilford
John 3:16
www.vanagain.com

Kim Springer wrote:
> On another note, I have a very small coolant leak coming from an upper head
> nut. I've never heard this mentioned and didn't find anything in the
> archives.
>
> I know the head studs are in the cooolant jacket and that sealant is used to
> seal the studs to the heads.
>
> Boston Bob, Jeff, any experience with this? Subi time Benny Boy?
>
> Thanks,
>
> Kim
>
>
>