Jim,

Yes it is.

There are a number of brands around.  The material is something like
pot metal and has a melting point below aluminum.  It is not welding,
but is like soldering or brazing.  It wets aluminum, but does not alloy
with it.

I've used the stuff for a lot of things from broken antenna elements to
a cast aluminum lawn chair.  The trick is not to get things too hot and
melt the aluminum that you are trying to weld.  I'd recommend
practicing a while before doing an actual repair.

The lawn chair is a good example of how this stuff is to be treated like
soldering, not welding.  I first tinned the ragged broken ends of the
cast aluminum part with the material.  Then I clamped the two pieces
together and heated them again until the material flowed.  When the
part cooled, it was thoroughly bonded.

Mike

------------------------ Original Message ------------------------
Date: Mon, 25 Feb 2019 15:58:33 -0600
From: "Jim. Felder" <jim.felder@GMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Subject: Does anyone know if this aluminum “welding”  rod is useful for
anything?

  https://www.totallytrending.us/products/easy-welding-rod

Jim